Decipho vs Game Master Helper
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Decipho
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Companion app for your favorite hint-deciphering game.
Game Master Helper
This app assists Game Masters by providing customizable reference materials and generating random elements like characters, loot, and encounters for tabletop role-playing games. It allows users to edit existing tables, create their own, and share them, working entirely offline with any TTRPG.
- Random character, loot, and encounter generation
- Customizable tables
- Offline functionality
- Table sharing and importing
- Support for various TTRPGs
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GMHelper helps Game Masters with reference material and generating random characters, loot, traps, encounters, names etc for TTRPGs and DnD games. All content is completely customizable. You can: - edit/update the existing example tables - create your own set of tables using the 'Create new' menu option in the main menu - share/download your table sets by using the share button on the main screen - import an existing table set use the 'Import file' menu option GMHelper works completely offline. All data is customizable, so can work with any TTRPG, including DnD 5e, ICRPG, ShadowDark etc.
Screenshots
Verdict
The clearest difference is update cadence: Game Master Helper at every 2 weeks against Decipho's every 12 months. Game Master Helper also leads on iOS requirement (13.0 vs 17.0). 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.
Decipho ships an update every 12 months, Game Master Helper every 2 weeks. Both last shipped on November 3, 2026.
| Parameter | Decipho | Game Master Helper |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (6 ratings) — better |
| Positive reviews | — | 66.7% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | Every 12 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 4 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Thomas Visser | MobileMarketResearch |
In-app purchases
Decipho
No in-app purchases
Game Master Helper
No in-app purchases
Questions
Is Decipho free?
Is Game Master Helper free?
Do Decipho or Game Master Helper have ads?
Which is updated more often, Decipho or Game Master Helper?
Other comparisons
