Encrypted Email vs CYCLENBATT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Encrypted Email
This secure email service offers end-to-end encryption and a private inbox, free from ads and AI training. It protects against spam, phishing, and trackers, with features for organizing emails and offline access. Based in Switzerland, it adheres to strict privacy laws.
- End-to-end encryption
- No ads, AI training, or inbox scanning
- Spam, phishing, and tracker protection
- Offline email access
- Password-protected emails
- Hide-my-email aliases
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Proton Mail is the encrypted email app trusted by over 100 million people. Get a secure, private email address protected by end-to-end encryption, with no ads, no AI training and no inbox scanning. Based in Switzerland and protected by some of the world's strictest privacy laws. Your inbox, your rules. Why choose Proton Mail for secure email • Free encrypted email: create a free @proton.me or @protonmail.com email address • Password-protected emails: send encrypted emails to anyone, even people who don't use Proton • Spam, phishing and tracker protection: with built-in spam filters, phishing alerts and email tracker blocking • Organize your inbox: with folders, labels and simple swipe gestures • Offline mode: read, write and organize emails offline, and everything syncs when you're back online • Private categories: keep important emails in focus with automatic, private categories • Multiple accounts: switch between multiple Proton Mail accounts in one secure email app • Get up to 1 GB of free email storage, or up to 15 GB with Mail Plus Secure email with encryption Everything in your inbox is stored with zero-access and end-to-end encryption, emails between Proton users can only be read by you and your recipient. Proton Mail can't read or scan your messages. Our open-source apps use OpenPGP encryption and are independently audited. A private alternative to temp mail Need a temp mail address for a sign-up? Create up to 10 free hide-my-email aliases on the web. They forward to your inbox, keep your real email address private, and can be disabled or deleted at any time. Switch to secure email Easy Switch moves your email to your new secure inbox with no manual exporting or importing. Connect Gmail to use your Gmail address alongside your Proton email in one secure inbox, or set up auto-forwarding from as many Gmail accounts as you like. The Wall Street Journal: "Proton Mail offers encrypted email, which makes it virtually impossible for anyone to read it except the sender and the recipient." How can Proton Mail be free? We believe everyone deserves private email. Free accounts are funded by our community of paid subscribers. Upgrade for more email storage, more addresses and custom domains. Follow Proton for the latest news and offers: Facebook: /proton X: @protonprivacy Reddit: /protonmail Instagram: /protonprivacy Learn more: https://proton.me/mail Our open-source code: https://github.com/ProtonMail
CYCLENBATT
Monitor your lithium battery's voltage, current, and capacity in real-time via Bluetooth. Supports a wide range of battery types for agricultural, RV, industrial, and electric vehicle applications.
- Bluetooth connectivity
- Real-time voltage display
- Real-time current display
- Real-time capacity display
- Wide device compatibility
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The app can connect to the following devices via Bluetooth: 12V 24V 36V 48v lithium battery, agricultural lithium battery, RV solar battery, industrial vacuum cleaner sweeper battery, 48V50ah lithium iron phosphate battery, golf cart and electric car battery, low temperature lithium battery, power/energy storage lithium battery, 48V 51.2V 60V 72V 96V lithium battery After connecting, the corresponding voltage, current and capacity will be displayed
Screenshots
Verdict
The clearest difference is review sentiment: Encrypted Email at 46% against CYCLENBATT's 0%. Encrypted Email also leads on rating (4.8 vs 2.5) and update cadence (every 10 days vs every 4 months). CYCLENBATT's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 17.2). 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. Encrypted Email sells 4 in-app purchases, starting at $5.99 per month. CYCLENBATT asks for nothing beyond the download.
Encrypted Email holds the better App Store score, 4.8 against 2.5. That said, the two scores are not equally well evidenced: Encrypted Email has 50K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 46% of Encrypted Email's written reviews are positive against 0% of CYCLENBATT's.
Encrypted Email ships an update every 10 days, CYCLENBATT every 4 months. The most recent releases landed on November 9, 2026 and November 4, 2026 respectively.
| Parameter | Encrypted Email | CYCLENBATT |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (50K ratings) — better | 2.5 (4 ratings) |
| Positive reviews | 46.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 50K — better | 4 |
| Update frequency | Every 10 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Best chart rank | #67 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.2 | 13.0 — better |
| Further details — not scored | ||
| Size | 288 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Proton AG | Nanchang Yepai Technology Co., Ltd. |
Customer experience
Encrypted Email
CYCLENBATT
Bugs and requests
Encrypted Email
Reported bugs
3 issues- Login issues and lost email data
- Unreliable push notifications
- Inconsistent user experience between app and web
Requested features
4 requests- Conversation threading and email previews
- Customizable notification sounds
- Offline email access
- Improved syncing across devices
CYCLENBATT
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Encrypted Email
- Mail Plus 1 month$5.991 Month
- Unlimited 1 month$14.991 Month
- Mail Plus 12 months$47.901 Year
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- Unlimited 1 year$119.001 Year
CYCLENBATT
No in-app purchases









