# Baby Formula Calc vs WaveFast

The clearest difference is in-app purchases: Baby Formula Calc at none against WaveFast's 1. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. WaveFast sells 1 one-off in-app purchase. Baby Formula Calc asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Baby Formula Calc against 5.0 for WaveFast. Both are backed by a comparable volume of ratings — 5 and 2 respectively.

Baby Formula Calc ships an update fortnightly, WaveFast every 3 weeks. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Baby Formula Calc | WaveFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/baby-formula-calc/id6499473129/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/wavefast-fasting-tracker/id6764770817/reviews) |
| Number of ratings | **5** | 2 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Monetization | Free | Free |
| Size | 4 MB | 20 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 17+ | 9+ |
| Developer | [Home Team Management LLC](https://appshunter.io/developer/1405086561) | [瑞华 张](https://appshunter.io/developer/1608130007) |

## What reviewers say

### Baby Formula Calc

[App page](https://appshunter.io/ios/app/baby-formula-calc/id6499473129)

This app helps parents accurately prepare baby formula by calculating the exact number of scoops needed for a specific bottle size and calorie count. It also assists in determining how many cans to purchase or how much to use for fortifying breast milk.

**Highlights:** Calculate scoops for bottle size and calories, Determine cans to buy, Calculate fortification amounts for breast milk, Designed by a GI pediatrician, Regular updates for latest information

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### WaveFast

[App page](https://appshunter.io/ios/app/wavefast-fasting-tracker/id6764770817)

Track your intermittent fasting with a visually engaging and user-friendly interface. This app offers a one-time purchase, no subscriptions, and prioritizes user privacy by storing all data locally. Stay motivated with fluid animations and smart notifications.

**Highlights:** Mesmerizing fluid wave animation, Dynamic Island & Live Activities integration, History and streak tracking, Customizable water themes, Body status insights, Smart notifications, Privacy-focused local data storage

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WaveFast Pro | $5.99 | one-time |


## Frequently asked questions

### Is Baby Formula Calc free?

Baby Formula Calc is free to download, with no in-app purchases.

### Is WaveFast free?

WaveFast is free to download, with in-app purchases available.

### Which has better reviews, Baby Formula Calc or WaveFast?

Baby Formula Calc and WaveFast are both rated 5.0 out of 5 on the App Store, from 5 and 2 ratings respectively.

### Do Baby Formula Calc or WaveFast have ads?

Neither Baby Formula Calc nor WaveFast shows ads.

### Which is updated more often, Baby Formula Calc or WaveFast?

Baby Formula Calc ships an update fortnightly, and WaveFast every 3 weeks. Most recently, Baby Formula Calc was updated on October 15, 2026 and WaveFast on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*