HelloSIM vs Fonata
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
HelloSIM
Read full descriptionHide full description
HelloSIM App! Top-Up, Buy BEST Plans, Check Your Balance & Data Usage, Discover Latest Promos & More.
Fonata
Read full descriptionHide full description
Fonata: Ocean Log โ Record, Train, and Relive Your Diving Moments Easily record every dive with detailed information about depth, time, and location. Capture and preserve your underwater experiences through photos and videos. The app also provides specialized *COโ and Oโ breathing exercises* designed for divers to improve breath-hold capacity and tolerance to low oxygen levels. Track your training progress, set goals, and develop your skills safely. Key Features 1. Dive Log Recording Record detailed information for each dive: * Dive location * Dive duration * Maximum depth * Personal notes *Photos, videos, or live recording during the dive 2. COโ & Oโ Breathing Training* Practice breathing exercises designed for freediving and breath control: * Structured COโ and Oโ training sessions * Track your progress over time * Improve breath-hold performance safely 3. Dive Memories & Highlights Relive your diving adventures: * Review past dives easily * Create highlight reels from photos and videos taken during your dives *Automatically add background music for a cinematic memory
Screenshots
Verdict
The clearest difference is ads: HelloSIM at none against Fonata's shown. HelloSIM also leads on update cadence (weekly vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
HelloSIM ships an update weekly, Fonata every 3 months. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | HelloSIM | Fonata |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly โ better | Every 3 months |
| Ads | No โ better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 โ better |
| Further details โ not scored | ||
| Size | 316 MB | 22 MB |
| Age rating | 4+ | 9+ |
| Developer | VALYOU SDN BHD | Dat Nguyen Duc |
In-app purchases
HelloSIM
No in-app purchases
Fonata
No in-app purchases









