RSA Lab vs Symbol Keys
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RSA Lab
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You can use RSA Lab to generate RSA keys, decrypt encrypted messages and encrypt messages. You can also store and name your RSA private and public keys in RSA Lab. All data in RSA Lab is synchronized on the iCloud.
Symbol Keys
Access hundreds of Unicode symbols with a customizable keyboard. Easily insert special characters into your messages and documents.
- Access hundreds of Unicode symbols
- Customizable keyboard layout
- Easy symbol insertion
- Supports iPhone and iPad
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A simple, customizable keyboard that gives you access to hundreds of Unicode symbols
Screenshots
Verdict
The clearest difference is update cadence: Symbol Keys at every 2 weeks against RSA Lab's every 42 months. 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.
RSA Lab ships an update every 42 months, Symbol Keys every 2 weeks. The most recent releases landed on October 27, 2026 and October 30, 2026 respectively.
| Parameter | RSA Lab | Symbol Keys |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (5 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 5 — better |
| Update frequency | Every 42 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.2 — better | 17.6 |
| Further details — not scored | ||
| Size | 1 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | 杨洋 冯 | Ji Hoon Lee |
In-app purchases
RSA Lab
No in-app purchases
Symbol Keys
No in-app purchases
