UltaHost vs カテラ (2026): プライスロックと出口ドア - JA

Why This Isn't a Like-for-Like Fight

UltaHost sells 18 hosting products. Not one of them is cloud.

We checked the full list in July 2026: 共有, VPS, VDS, ひたむきな, WordPress, Eメール, ウィンドウズ, ゲーム, リセラー, plus niche variants down to Forex and radio. There is no cloud SKU, 時間単位の課金はありません, 自動スケーリングなし, no published provisioning API. Billing runs on monthly, 毎年, two-year and three-year cycles. 言葉 "クラウド" appears in their blog posts and in product names like Cloudflare VPS. That's a VPS with Cloudflare attached, not a cloud server.

Kamatera is the mirror image. No managed WordPress product. cPanelは含まれていません. No management bundled into the base tier. What it has instead is per-hour billing, a configurator running from 1 vCPUから 104, and a delete button that stops the meter.

So the query people type ("which is cheaper?") is the wrong one. The entry prices sit 80 cents apart and neither rises. The fork that matters:

• ウルトラホスト: あなたは前払いします 24 月, they manage the box, the rate is frozen.
• カマテラ: you pay by the hour, you manage the box, you can walk today.

Arrived here from a 一般的な VPS ホスティングの比較? That distinction is the whole article. Everything below hangs off it.

UltaHost – Best for a Managed VPS at a Rate That Never Moves

エントリーVPS: 4.80ドル/月 (1 GB DDR5 メモリ, 1 vCPU, 30 GB NVMe) | リニューアル: 4.80ドル/月 | 25 データセンター | 30-日帰り | 99.99% 稼働時間の主張

米ドル 4.80. That's what UltaHost's entry VPS costs today, and it's what it costs when the 24-month term rolls over. The struck-through USD 7.99 beside it on the pricing page is a list rate, not a renewal rate. The gap between those two ideas is where most hosting buyers lose money.

Run the multiplier and UltaHost comes out at 1.0x entry-to-renewal. Across the VPS market, 2x to 5x is the norm. 正直な注意点が 1 つあります: that frozen rate is tied to re-committing to another 24 月, and shorter billing cycles cost more. It's a commitment discount wearing a price-lock costume. Still a good deal, if you were going to stay anyway.

Few hosts at this price bundle management and root access together. UltaHost does both: 彼らのチームがインストールを担当します, 構成, updates and monitoring at no extra charge, and you keep full root. Managed like a shared host, root like a cloud box. In numbers: UltaHost VPS Business あなたに与えます 2 GB RAM, 2 vCPU と 50 GB NVMe for USD 8.50/month, management included. Kamatera's nearest dedicated-thread equivalent (2 vCPU タイプ B, 2 GB RAM) costs USD 25/month before management, USD 75/month once Pro Managed is attached. それは 8.8x UltaHost's price for the same managed job. 私たちの マネージド VPS ホスティング ガイド puts that USD 8.50 in wider context.

Now the part their marketing won't tell you. Review aggregators put UltaHost at 3.4/5 横切って 1,722 レビュー, but the average buries the real story: 63% 五つ星, 27% 一つ星, かろうじて 10% anywhere in between. That isn't a mediocre host. That's a polarizing one. The recurring theme in the one-star pile is accounts and servers suspended without warning. If you host client sites, それ 27% deserves real weight. A surprise suspension is a business problem, not a support ticket.

One more discrepancy. UltaHost's VPS page advertises "30+ グローバル拠点" and its dedicated page claims "35+". The company's own data center page lists 25 各地の場所 20 国. We're using their number, not their marketing's.

長所:

• Renewal holds at the signup rate, a 1.0x multiplier on two-year terms
• Management included free on every VPS, with full root access retained
• 30 GB NVMe on the entry plan against Kamatera's 20 GB
• 従量制帯域幅 (フェアユース) where Kamatera meters at 5 TB
• AMD EPYC 9005/9004 hardware following a USD 2.4M, 800-server refresh 1月に 2025

短所:

• 27% 1つ星のレビュー, with unannounced suspensions the recurring complaint
• 時間単位の課金はありません, 自動スケーリングなし, no provisioning API
• cPanel, Plesk and ispmanager are paid add-ons VPS上で (only Hestia and CyberPanel are free)

価格設定: VPS Basic USD 4.80 (リスト 7.99), ビジネス米ドル 8.50 (リスト 13.99), プロフェッショナルUSD 13.80 (リスト 22.80, 4 GB RAM), エンタープライズ米ドル 17.99 (リスト 29.99, 6 GB RAM). Every promo rate needs the 24-month term for its 40% 割引; three years takes 50% オフ. Shared starts at USD 3.80, WordPress at USD 2.80. Free migration and 30-day money-back apply across the range. The extra that bites: control panel licences beyond the free ones.

こんな方に最適: A managed VPS or WordPress site you'll run for years and don't want to babysit. 次の場合はスキップします: You need to spin servers up and down, or a surprise suspension would take your business offline.

評決: Buy UltaHost if you want someone else patching the server and a price you can put in a two-year budget without an asterisk. Don't buy it if you need elastic infrastructure or an API. UltaHost has neither, Kamatera has both. And if that 27% one-star rate turns your stomach, that's a rational reaction, not squeamishness.

Kamatera – Best for Servers You Can Switch Off and Stop Paying For

エントリ: USD 4.00/月 (1 vCPU Type A shared threads, 1 GB RAM, 20 GB NVMe, 5 TBトラフィック, 1 TB in Asia) | 毎時: USD 0.014/hour | 21 都市 | 30-日米ドル 100 トライアル | 99.95% 公表されている稼働時間

その米ドル 4 server isn't a USD 4 server for most people, and that's not an accusation, it's arithmetic. It ships with 20 GBのディスク. 追加する 100 GB more runs USD 0.05 1GBあたり, so USD 5 月, which costs more than the server itself. Want anyone to manage it? Pro Managed is a flat USD 50, putting the cheapest managed box at USD 54. The advertised figure is honest. It just describes a machine a lot of buyers will outgrow fast.

What you're buying is infrastructure, ホスティングしていない. The configurator spans 1 に 104 vCPU, 256 MBから 128 GBのRAM, と 20 GBから 4,000 GBのNVMe. CPU comes in four types: A for availability (shared threads), B for general purpose (専用スレッド), D for fully dedicated, T for burstable. その米ドル 4.00 entry config is a Type A shared-thread instance. Moving to dedicated threads means the Type B preset at USD 25/month, a 6.25×ジャンプ for one extra vCPU and one extra gigabyte of RAM. No competing pricing table shows you that step, and it's the one that catches people.

UltaHost に対して, the entry numbers read like this. Kamatera undercuts by 80 セント (米ドル 4.00 対米ドル 4.80). It hands you 20 GB of NVMe where UltaHost gives 30 GB, on shared CPU threads rather than a managed VPS, with zero management. Cheaper on the invoice, thinner on the spec sheet, and yours to administer. 私たちの クラウドホスティングの比較 covers where that trade lands against the bigger IaaS players.

The trial is the strongest thing here, and it's a real trial, not a refund window in disguise. あなたが得る 30 日々, a config worth up to USD 100, と 1 TB のトラフィック. A card is required and billing starts automatically afterwards, so set a reminder. But you can build the box, break it, rebuild it and walk away having paid nothing. UltaHost's money-back guarantee makes you pay first and claim back later. Not the same offer.

Two honest warnings. サポートラン 24/7 by phone and ticket, ライブチャットはありません, and on the free tier it stops at the infrastructure boundary. If WordPress breaks while the server itself is fine, that's your problem unless you're paying USD 50/month. There's also an "定額制" traffic option that turns out to be speed-capped at 50 Mbps (いいえ, we'd argue, what anyone hears in the word unmetered). User reviews sit around 4.8/5 across 1,200-plus. Support gets praised again and again; the standing gripe is that nobody can predict the bill.

長所:

• No contract and no renewal markup: cancel, and you stop paying
• 30-USD での 1 日トライアル 100 of real credit, not a refund you claim back
• から設定可能 1 に 104 vCPU と 256 MBから 128 GB RAM
• A Tel Aviv region almost no Western competitor offers

短所:

• デフォルトでは管理対象外: Pro Managed is USD 50/month per server, プレミアム米ドル 150
• 米ドル 4 tier runs on shared CPU threads; dedicated threads start at USD 25
• Traffic drops to 1 TB/month in Asia 対 5 他の場所での結核, then USD 0.01/GB
• Billing complexity is the number one recurring complaint in user reviews
• Data center footprint has been static since November 2024

価格設定: Entry USD 4.00/month, presets at USD 25 (2 vCPU タイプ B, 2 GB) と米ドル 39 (4 GB). Hourly runs USD 0.014/hour on the entry config. アドオン: storage at USD 0.05/GB/month, extra public IPs at USD 1/month (first free, four maximum), traffic overage at USD 0.01/GB above the included 5 TB. Kamatera publishes no price for its cPanel licence, its backup add-on, or the charge that keeps accruing on a powered-off server. Budget for unknowns.

こんな方に最適: Developers and agencies running servers that don't need to be on 24/7, or anyone who wants to test properly before paying. 次の場合はスキップします: You want someone else to fix WordPress at 3 午前, or you can't predict a bill assembled from six line items.

評決: Choose Kamatera if you can run Linux unaided, and the power to destroy a server is worth more to you than a frozen price. Want management included? UltaHost bundles it at USD 8.50, while Kamatera's cheapest managed box is USD 54, 米ドルに上昇 75 once you match UltaHost's dedicated-thread specs. No argument there. Want a real cloud with an API and hourly billing? UltaHost doesn't sell one at any price.

What Each One Actually Costs Once You Add What's Missing

Advertised prices start a conversation, they don't end one. Here are three realistic baskets, priced with the add-ons both providers actually charge.

One managed WordPress site, 2 GB RAM

UltaHost VPS Business: USD 8.50/month, management included, plus a panel licence if you want cPanel over the free Hestia. Kamatera at matched specs: USD 25/month for the Type B config, USD 50/month for Pro Managed, cPanel licence on top. それは USD 75/month before the licence, and 8.8x UltaHost for the same job. You could drop Kamatera to USD 54 by taking the shared-thread box instead, but then you're running WooCommerce on a CPU you share with strangers.

A dev box running 6 1日に数時間, 20 days a month

それは 120 時間. Kamatera on hourly billing: 120 × 米ドル 0.014 = USD 1.68/month. UltaHost's floor is USD 4.80/month, prepaid 24 月, so USD 115.20 committed on day one. Kamatera is 2.9x cheaper and carries no lock-in. This is the exact workload hourly billing exists for.

The mistake nobody warns you about

Leave that same Kamatera server running 24/7 on hourly billing and you pay 730 × 米ドル 0.014 = USD 10.22/month. The monthly rate for the identical machine is USD 4.00. Hourly therefore costs 2.5× さらに than monthly on the entry config, and 2.1x more than UltaHost's managed VPS. Hourly is a tool for servers you actually switch off. Run one around the clock on an hourly meter and you're paying a premium for flexibility you never use. Most comparison pages repeat a vague "monthly is about 20% 安い" ライン. At this config, that's off by a mile.

The traffic line almost nobody checks

This one catches people after they've signed. UltaHost bills VPS bandwidth as unmetered under a fair-use policy, so a traffic spike doesn't generate an invoice. Kamatera meters it: 5 結核を含む, then USD 0.01/GB, または米ドル 10 per extra terabyte. Fine for most sites, and cheap next to the hyperscalers.

But Kamatera's own traffic FAQ drops that allowance to 1 TB per month in Asia, one fifth of what the rest of the network gets. It hits Hong Kong, シンガポール, Sydney and Tokyo, four of their 21 都市. A media-heavy site pushing 3 TB out of Singapore isn't paying USD 4. It's paying USD 4 プラス米ドル 20 of overage, 毎月. The pricing page won't tell you that before you commit.

Uptime Promises, サポート, and the Numbers That Don't Match

Both providers print an uptime figure. One contradicts its own contract.

Look at Kamatera's cloud server pages and you'll see 99.95% 稼働時間. Then open the signed service level agreement, which defines availability as 99.9% and permits eight hours of unavailability per service year. Those aren't the same promise. 99.95% means roughly 4.4 hours of downtime a year; 99.9% allows nearly 8.8. The enforceable number is the one in the legal document, not the one on the sales page. UltaHost の主張 99.99% but publishes no SLA credit schedule we could find, so its claim carries no stated remedy.

Support differs in shape more than in quality. UltaHost runs 24/7 ライブチャット, tickets and AI-assisted triage, claiming sub-30-minute response on critical tickets. Kamatera runs 24/7 phone and tickets, ライブチャットはありません, and its free tier answers infrastructure questions only. Application-level help costs USD 50/month.

The review averages mislead too, in opposite directions. Kamatera's ~4.8/5 across 1,200-plus reviews is broadly consistent. UltaHostの 3.4/5 横切って 1,722 isn't a middling score at all, it's two populations: 63% delighted, 27% furious. Ask which one you'd land in. If your tolerance for an unexplained suspension is zero, the average is the wrong number to read.

How to Choose Between UltaHost and Kamatera

バジェット: USD 10/月未満, one WordPress site, no Linux skills

UltaHost VPS Business at USD 8.50. Kamatera cannot serve this buyer at this price, 終点. 米ドルです 4 tier is unmanaged and shared-thread. The moment your problem is WordPress rather than the operating system, the free support tier stops helping and management costs USD 50/month. Weigh it against our WordPress VPS roundup before committing two years.

ワークロード: a staging box you switch off nights and weekends

カマテラ, on hourly billing. で 120 hours a month you pay USD 1.68 against UltaHost's USD 4.80 床, and nothing is locked. Do remember to actually switch it off. Leave it running and the maths inverts to USD 10.22.

観客: ラテンアメリカ, アフリカ, 湾岸, またはインド

ウルトラホスト, on geography alone. 鎌寺の 21 cities include none of São Paulo, ボゴタ, ラゴス, ヨハネスブルグ, ドバイ, Riyadh or New Delhi. UltaHost serves all seven. Flip the map and it reverses: need Tel Aviv, ブカレスト, Atlanta or Miami, and Kamatera is your only option here.

観客: mostly Asian traffic, media-heavy site

Bandwidth decides this one, not latency, and it lands on UltaHost. Both providers have Asian data centers. But Kamatera cuts its included traffic to 1 TB a month in Asia against 5 TB everywhere else. Push 3 TB out of Singapore and you've added USD 20/month of overage to a USD 4 サーバ. UltaHost's unmetered policy doesn't charge you a penny for the same traffic.

You want to test before paying anything

Kamitera の USD での 30 日間トライアル 100 信用度の. UltaHost's money-back guarantee still makes you pay first and claim it back. That's a refund, not a trial. Only one of these two lets you walk away having spent nothing.

Scaling: one server today, ten during a launch, back to one after

There's nothing to debate here: it's Kamatera. UltaHost has no hourly billing, no autoscaling and no provisioning API. That pattern is impossible there by design.

よくある質問

Is Kamatera cheaper than UltaHost for a single WordPress site?

いいえ, and it isn't close once you match what you get. UltaHost's VPS Business runs USD 8.50/month with management bundled in. The comparable Kamatera setup costs USD 25/month for a dedicated-thread server plus USD 50/month for Pro Managed support. それは米ドルです 75 before any control panel licence. Kamatera only wins on price if you administer the server yourself.

Does UltaHost or Kamatera give you a free trial?

Only Kamatera. あなたが得る 30 日々, a server configuration worth up to USD 100, と 1 TB のトラフィック. A credit card is required and billing starts automatically afterwards, so diarise the end date. UltaHost offers a 30-day money-back guarantee instead, meaning you pay first and request a refund.

How much does Kamatera's USD 4 server actually cost per month?

米ドル 4.00 買う 1 vCPU on shared threads, 1 GB RAM, 20 GBのNVMeと 5 TB のトラフィック. That price is real, but the bill grows fast. Storage runs USD 0.05/GB per month, extra IP addresses USD 1 それぞれ, traffic beyond 5 TB is USD 0.01/GB, and managed support is USD 50. 追加する 100 GB of disk alone more than doubles the server cost.

Does Kamatera charge extra for bandwidth?

はい, past your allowance. 各サーバーには以下が含まれます 5 TB のトラフィック, then USD 0.01/GB, または米ドル 10 per extra terabyte. Check the region first, けれど. Kamatera's traffic FAQ cuts that allowance to just 1 TB a month in Asia, so a busy site in Singapore or Tokyo hits overage fast. UltaHost bills VPS bandwidth as unmetered under a fair-use policy, so it avoids this problem entirely.

Can I run a Kamatera server without knowing Linux?

Not comfortably. Kamatera ships unmanaged infrastructure, and its free support tier covers the server layer rather than your applications. If WordPress goes down while the server itself is healthy, you're on your own unless you pay for Pro Managed. UltaHost bundles management free on every VPS and is the better call if you'd rather not touch a terminal.

Which one is safer if I might cancel in three months?

カマテラ. There's no contract, so you terminate the server and stop paying at the end of the current month. UltaHostのUSD 4.80 rate depends on a 24-month prepayment, so you commit USD 115.20 前に. After the 30-day money-back window closes, that money is spent. Short-horizon buyers should not sign two-year terms.

最終評決

ウルトラホスト wins for anyone who wants a managed VPS at a price that doesn't move, and it wins that fight decisively: USD 8.50/month with management included, 対米ドル 75 for the Kamatera build that matches it. The 1.0x renewal multiplier is real and rare. So is the 27% one-star review rate, and both belong in your decision.

カマテラ wins for anyone whose servers shouldn't run 24/7, who wants to test before paying, or who needs to scale up and back down. 時間単位の請求, 契約はありません, a real USD 100 trial and a configurator reaching 104 vCPU are things UltaHost cannot offer at any price. It doesn't sell cloud infrastructure at all.

Pick on the shape of your commitment, not on the 80 cents between their entry prices. If the server will still be there in two years and you don't want to maintain it, that's UltaHost. If you want the option to walk away on a Tuesday, that's Kamatera.

まだ選択肢を検討中? 私たちの ホスティング検索ツール narrows the field by budget and use case. If neither of these two fits, 私たちの マネージドクラウドホスティング comparison covers the providers sitting between UltaHost's fixed plans and Kamatera's raw infrastructure. That middle ground is where a lot of buyers in this bracket end up landing.