MyFathom vs ToneFix
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyFathom
This app supports rebreather divers by providing tools for building checklists, monitoring O2 cell performance, logging dives, and storing certification cards. It's designed to be a comprehensive companion for technical diving needs.
- Build custom checklists
- Monitor O2 cell performance
- Log dive data
- Store certification cards
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The MyFathom app is the companion app for Fathom CCR divers with everything you need to support your rebreather diving. Features: - Build checklist - O2 cell performance monitoring - Dive log - Certification cards
ToneFix
Instantly refine your messages for clarity and impact. Choose your desired tone and length to get a polished rewrite without saving any conversation history. Ideal for texts, emails, and work messages needing a specific communication style.
- Instant message rewriting
- Adjustable message tone
- Customizable message length
- No chat history saved
- One-tap copy
- No sign-up required
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Write smarter. Sound better. Stay private. ToneFix helps you instantly improve how your messages come across, without saving a single word. Unlike chatbots or writing assistants that store every conversation, ToneFix gives you a clean, one-off space to rewrite what you need and move on. Just type or paste your text, choose your tone and length, and get a polished rewrite in seconds. Perfect for: • Texts and emails that need the right tone • Work messages that sound too harsh or too soft • Quick one-time rewrites - no clutter, no history Features: • Choose tone: Professional, Polite, Direct, Casual, or Empathetic • Adjust message length: Shorter, Same, or Longer • Tap anywhere to copy your new message • No sign-up, no chat history - just instant results Before you hit send… ToneFix it.
Screenshots
Verdict
The clearest difference is update cadence: ToneFix at monthly against MyFathom's every 13 months. MyFathom's advantage is iOS requirement (11.0 vs 15.1). On price, rating, ratings volume and ads 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.
On the App Store both sit at effectively the same score — 5.0 for MyFathom against 5.0 for ToneFix. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
MyFathom ships an update every 13 months, ToneFix monthly. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | MyFathom | ToneFix |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 13 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 11.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 35 MB | 47 MB |
| Age rating | 4+ | 9+ |
| Developer | FATHOM Dive Systems, LLC | MoCo Apps LLC |
In-app purchases
MyFathom
No in-app purchases
ToneFix
No in-app purchases
