InstAddr vs CanadaUnits
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
InstAddr
Create and manage multiple disposable email addresses for free. Use them for various purposes without worrying about spam or privacy. Addresses are permanent and can be accessed across devices.
- Create unlimited disposable email addresses
- Permanent email addresses
- Send, reply, and forward emails
- Push notifications for new messages
- Sync across PC and smartphones
- Supports HTML mail and attachments
- Built-in mailer functions
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The sophisticated app enables you to create disposable email addresses for free just by activating it. Your account simultaneously maintains multiple email addresses, which you can utilize for different purposes. As the service does not have an expiry date, the addresses can be used permanently. -------------------- - “There is a website requiring email authentication to sign up, but I don’t want to receive spam messages and newsletters…” - “Someone I’m not very close asked for my email address…” - “I need a dedicated contact email address and web form for our event” - “There are people I’m not that close but want to keep in touch” The app perfectly caters for all these needs! ------------------- The app’s features are as follows: * You can simultaneously own as many email addresses as you like! You can create additional email addresses anytime you like in just a second without making any changes to the existing address. You can either use characters of your choice for the address or have the app to generate short addresses. The app, enhanced with our proprietary technology, is also able to automatically generate easily memorable addresses. * You can communicate with the address (write new messages, reply, forward, and share)! You can send out messages from the created address and attach files. The addresses also support latest features, such as SPF, DKIM (sender authentication), encrypted delivery, etc. * Push notification is available! The app notifies the arrival of new messages even when the app is turned off. It can also send out notifications to other smartphones and PCs. You can turn the push notification off or turn it on only for specified addresses. * Permanent email addresses! The addresses you create will function permanently unless you delete them. Even if you change your mobile or delete the app, the addresses remain intact and can be restored as soon as you sign in! Although sent and received messages are automatically deleted after a month, you can permanently save them by selecting protection mode for them. * You can sync with PC and other smartphones! You can use the same address on PC and other smartphones sync messages. No difficult setup is required! You only have to sign in with the automatically generated ID and password. * App supports HTML mails and mail attachments! The app accepts messages in any formats in any languages. You can also receive emoji and Deco-mails. You can send and receive mail attachments, while the system blocks malware attachments. * Perfectly functionable mailer! You no longer need other email apps, as all functions, e.g. inbox, sent box, filter, mail blocking function, etc. come as a package! You can open the service as a regular mailer from a browser, etc. * Full of original features not available in other mailer apps! You can share messages with friends as a website with a URL, assign email addresses to other people, and create web forms. More users are using the app to create dedicated contact email address for campaigns and events. [Premium Subscription Plan] You can upgrade to a premium subscription plan as an in-app purchase. You will receive the following benefits: - Hide Ads - Address creation using a premium domain. - POP3/SMTP access - Custom domain support Subscriptions start at $1.49/month or $7.99/year in the US, and can vary by region. Storage subscriptions purchased from the app will be charged to your iTunes Account, and automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Subscriptions and auto-renewal may be managed by going to iTunes Account Settings after purchase. Privacy Policy: https://aquapal.net/privacy.php Terms of Use: https://aquapal.net/rule.php
CanadaUnits
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------------------------------ このアプリは ------------------------------ カナダの単位変換に特化したユニットコンバーターです。単位だけでなく、時間、靴サイズの変換もできます。 ------------------------------ 対応単位は? ------------------------------ 具体的にはkg, lb ,m ,cm ,ft ,inch ,℃ ,°F ,km ,mile です。各州の消費税も計算できます。 ------------------------------ 便利なポイントは? ------------------------------ 変換したい単位を選択するだけで、変換後の単位を指定する必要がありません。 例えば、100kgと入力したら、自動的にlbに変換されます。 ------------------------------ 時差もわかる ------------------------------ 設定画面でカナダの州を選択。選択した州と日本の時差が表示されます。現在時刻との比較だけでなく、どんな時間にも設定できるのが特徴です。 ------------------------------ 靴のサイズもわかる ------------------------------ カナダの特殊な靴のサイズ表示。自分のサイズをcmで指定すると、カナダの靴サイズが表示されます。
Screenshots
Verdict
The clearest difference is in-app purchases: CanadaUnits at none against InstAddr's 2. CanadaUnits also leads on update cadence (daily vs monthly). InstAddr's advantage is iOS requirement (14.0 vs 16.2). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. InstAddr sells 2 in-app purchases, starting at $1.49 per month. CanadaUnits asks for nothing beyond the download.
InstAddr ships an update monthly, CanadaUnits daily. The most recent releases landed on September 22, 2026 and September 12, 2026 respectively.
| Parameter | InstAddr | CanadaUnits |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (956 ratings) — better | — |
| Positive reviews | 86.4% of reviews | — |
| Number of ratings | 956 — better | — |
| Update frequency | Monthly | Daily — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 27 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Aki Ueno | MOMOKO NAKADA |
Bugs and requests
InstAddr
Reported bugs
3 issues- Server connectivity problems
- Inability to receive verification codes
- Emails not being delivered
Requested features
4 requests- Add more email domain options
- Improve integration with native email apps
- Implement a login system to save email accounts
- Provide better support and communication
CanadaUnits
Not enough reviews yet to summarise bugs or requests.
In-app purchases
InstAddr
- Premium Plan (1 Month)$1.491 Month
- Premium Plan (1 Year)$7.991 Year
CanadaUnits
No in-app purchases
Questions
Is InstAddr free?
Is CanadaUnits free?
Do InstAddr or CanadaUnits have ads?
Which is updated more often, InstAddr or CanadaUnits?
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