GreenKeyboard vs Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GreenKeyboard
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KEH's GreenKeyboard has been released. It is a simple keyboard that can be added and used in keyboard settings. GreenKeyboard does not collect user data and does not use the Internet. If you allow full access in the keyboard settings, you can feel the haptic feedback.
Authenticator
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Authenticator A secure authenticator app for generating time-based and counter-based one-time passwords. Features: • QR code scanning • Manual account entry • Secure backup and restore • Passcode protection
Screenshots
Verdict
The clearest difference is update cadence: Authenticator at every 2 months against GreenKeyboard's every 20 months. Authenticator also leads on iOS requirement (15 vs 26.1). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
GreenKeyboard ships an update every 20 months, Authenticator every 2 months. The most recent releases landed on October 5, 2026 and October 25, 2026 respectively.
| Parameter | GreenKeyboard | Authenticator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 20 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 26.1 | 15 — better |
| Further details — not scored | ||
| Size | 0 MB | 18 MB |
| Age rating | 4+ | 9+ |
| Developer | jiwoong jang | ShenZhen Yuyue Technology Co., Ltd. |
In-app purchases
GreenKeyboard
No in-app purchases
Authenticator
No in-app purchases
