Comparison

HelloSIM vs Fonata

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

HelloSIM

Features
Read full description

HelloSIM App! Top-Up, Buy BEST Plans, Check Your Balance & Data Usage, Discover Latest Promos & More.

About

Fonata

Features
Read 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

HelloSIM4 screens
Fonata4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

HelloSIM ships an update weekly, Fonata every 3 months. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

Scorecard2 real differences ยท 4 level
HelloSIM versus Fonata: the parameters behind the verdict, then further details
ParameterHelloSIMFonata
PriceFreeFree
Update frequencyWeekly โ€” betterEvery 3 months
AdsNo โ€” betterYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.014.0 โ€” better
Further details โ€” not scored
Size316 MB22 MB
Age rating4+9+
DeveloperVALYOU SDN BHDDat Nguyen Duc

In-app purchases

None

HelloSIM

No in-app purchases

None

Fonata

No in-app purchases

Questions

Is HelloSIM free?
HelloSIM is free to download, with no in-app purchases.
Is Fonata free?
Fonata is free to download, with no in-app purchases.
Do HelloSIM or Fonata have ads?
Fonata shows ads; HelloSIM does not.
Which is updated more often, HelloSIM or Fonata?
HelloSIM ships an update weekly, and Fonata every 3 months. Most recently, HelloSIM was updated on October 28, 2026 and Fonata on October 31, 2026.

Other comparisons