# Lactose Estimator vs StomaLog

The clearest difference is in-app purchases: Lactose Estimator at none against StomaLog's 1. Lactose Estimator also leads on iOS requirement (15.0 vs 18.6). StomaLog's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. StomaLog sells 1 one-off in-app purchase. Lactose Estimator asks for nothing beyond the download.

Lactose Estimator ships an update every 2 months, StomaLog every 3 weeks. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Lactose Estimator | StomaLog |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 14 MB | 5 MB |
| Requires iOS | **15.0** | 18.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [WEBGEHEUER OU](https://appshunter.io/developer/1683810460) | [Shenzhen Fu Kang Heng Development Co., Ltd.](https://appshunter.io/developer/1863837413) |

## What reviewers say

### Lactose Estimator

[App page](https://appshunter.io/ios/app/lactose-estimator/id6748520772)

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

**In-app purchases:** none


### StomaLog

[App page](https://appshunter.io/ios/app/stomalog/id6770739038)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full Version | $3.99 | one-time |


## Frequently asked questions

### Is Lactose Estimator free?

Lactose Estimator is free to download, with no in-app purchases.

### Is StomaLog free?

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

### Do Lactose Estimator or StomaLog have ads?

Neither Lactose Estimator nor StomaLog shows ads.

### Which is updated more often, Lactose Estimator or StomaLog?

Lactose Estimator ships an update every 2 months, and StomaLog every 3 weeks. Most recently, Lactose Estimator was updated on October 24, 2026 and StomaLog on October 9, 2026.

---

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