RebtelとYollaの比較

課金単位

Rebtelの請求方法は1分単位、Yollaの請求方法は切り上げです。同じ分単位の料金でも、請求方法によって合計額は異なり、その差が最も大きくなるのは、まさに多くの人が通話する地域です。35秒の通話を切り上げて1分分として請求すると、その通話にはおよそ七十パーセントの割増が発生します。しかし料金自体は変わっていないため、どの料金比較にもこの差は現れません。

クレジットの有効期限

Rebtel：非公開。Yolla：無期限。クレジットの有効期限は、料金表には現れないコストです。一度にチャージする金額が大きいほど、また通話の頻度が低いほど影響が大きくなります。緊急時に備えて購入したまま使われていない残高こそ、利用停止ルールの対象になります。

サブスクリプション

Rebtel：サブスクリプションを提供。Yolla：サブスクリプションなし。サブスクリプションは損益分岐点を超えれば1分あたりの料金が安くなりますが、超えない月にはかえって高くなります。つまり、サブスクリプションを選ぶことは、自分の将来の利用状況に賭けることです。プリペイドクレジットはその反対で、単価が高くなる代わりに契約の義務がありません。

Rebtelの公開情報に基づく内容

• per minute (Rebtel markets one‑minute billing).
• none (Rebtel markets 'no hidden fees' and does not list a separate connection fee).
• Marketing emphasizes no contracts and no hidden fees; public pages do not prominently document a fixed expiry period for purchased calling credit.
• Voice credit/top‑up minimum not clearly stated; some plans sold in fixed price bundles such as unlimited and minute packages.

Yollaの公開情報に基づく内容

• per minute (rounded according to destination; published as $X/min).
• none (site states no hidden fees and transparent per‑minute pricing).
• Marketing emphasises 'Your balance never expires' and 'no hidden fees'; there is no published fixed time‑based expiry.

Rebtelの公開情報に基づく内容

Users install the app on iOS or Android, create a Rebtel account, and verify with their phone number to start calling or sending top‑ups.

Yollaの公開情報に基づく内容

Users sign up in the Yolla app, top up their balance, and then place calls from the app to regular phone numbers worldwide.

Rebtelの公開情報に基づく内容

Offers Unlimited Country plans (e.g. India Unlimited), Global Unlimited, and minutes‑based plans, alongside pay‑per‑minute credit.

Yollaの公開情報に基づく内容

Yolla sells prepaid credit with transparent per‑minute pricing; no bundled monthly subscription plans are advertised on the main site.

Rebtel

• India, mobile: From about $0.0278/min pay‑as‑you‑go or included in unlimited India subscriptions; exact current per‑minute USD rate varies by plan.

記録された情報源：Rebtel official rates and India calling explainer pages; detailed per‑country tables are in the in‑app rate lookup and web 'rates' tool.

Yolla

• United States, landline: From about $0.0119/min (Yolla main rates list 'United States from $0.0119/min'); VAT/tax not specified.
• United States, mobile: Same 'from' rate as US landline in main list; specific mobile split not clearly listed in summary table.
• United Kingdom, landline: From about $0.0X/min (United Kingdom row present in table but exact value truncated in snippet; precise rate not visible here) – treated as not found.
• Nigeria, mobile: From about $0.36/min according to country list; landline vs mobile split not visible in snippet.

記録された情報源：Yolla official rates list and marketing text; complete per‑country breakdown is accessed via the rates page and in‑app lookup.

Rebtel

• Places international calls to landlines and mobiles in more than 190 countries.
• Uses local access numbers when available so calls can work without an active data connection.
• Offers unlimited calling subscriptions and destination‑specific minute bundles as well as pay‑as‑you‑go credit.
• Supports mobile top‑ups to international numbers from within the app.
• Markets 'no contracts or hidden fees' and transparent per‑minute pricing.
• Provides apps for iOS and Android; no separate desktop app is promoted.
• Targets migrants and international nomads as primary user segments.
• Calls can be routed over 3G/4G, Wi‑Fi, or local phone lines depending on configuration.

Yolla

• Supports low‑cost VoIP calls to mobiles and landlines in over 190 countries.
• Advertises transparent per‑minute rates with no hidden fees.
• Displays the rate before each call, so users see cost per minute on screen.
• Allows sending international SMS at a flat rate of about $0.15 per message.
• Uses prepaid credit that can be topped up via in‑app payments.
• Markets saving 'up to 90%' on calls abroad versus standard telecom tariffs.
• Apps available for Android and iOS smartphones.
• VoIP calls use Wi‑Fi or mobile data; receivers do not need the app or an internet connection.

Rebtel

• Some app‑store reviews report occasional call drops and variable call quality, especially on weaker mobile data connections.
• Users have complained about promotional offers or 'unlimited' plans having fair‑usage conditions they found unclear.
• Several reviews mention issues with billing or being charged unexpectedly when local access numbers are treated as chargeable calls by mobile carriers.

Yolla

• Some user reviews mention occasional connectivity issues or failed connections to certain destinations.
• There are complaints about account verification and number recognition problems for some destinations.
• A subset of reviewers report difficulty obtaining refunds or resolving billing disputes.