# Diaper Calc vs FlossLog

The clearest difference is in-app purchases: Diaper Calc at none against FlossLog's 1. FlossLog's advantage is update cadence (every 2 months vs every 39 months). On price, ads, device support and iOS requirement there is nothing between them.

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

Diaper Calc ships an update every 39 months, FlossLog every 2 months. The most recent releases landed on October 13, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Diaper Calc | FlossLog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/diaper-calc/id1489084828/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 39 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 2 MB | 44 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pavel Zak](https://appshunter.io/developer/536894801) | [kazuki korenori](https://appshunter.io/developer/1884835388) |

## What reviewers say

### Diaper Calc

[App page](https://appshunter.io/ios/app/diaper-calc/id1489084828)

This utility helps parents estimate the number of diapers needed for their baby over a specific period. It considers the baby's current weight and projected growth to recommend optimal diaper pack sizes and offers helpful purchasing tips. The app supports multiple children and works offline.

**Highlights:** Computes diaper count and sizes for up to 3 years, Recommends ideal diaper packaging, Displays baby growth charts, Supports US and EU diaper size distinctions, Usable for multiple children, Offers diaper purchase tips, Works offline, Light/Dark mode support

**Features:** macOS Compatibility

**In-app purchases:** none


### FlossLog

[App page](https://appshunter.io/ios/app/flosslog/id6793844361)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| FlossLog Pro | $6.99 | one-time |


## Frequently asked questions

### Is Diaper Calc free?

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

### Is FlossLog free?

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

### Do Diaper Calc or FlossLog have ads?

Neither Diaper Calc nor FlossLog shows ads.

### Which is updated more often, Diaper Calc or FlossLog?

Diaper Calc ships an update every 39 months, and FlossLog every 2 months. Most recently, Diaper Calc was updated on October 13, 2026 and FlossLog on October 7, 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.*