# SmartLab35 vs LightStop

The clearest difference is in-app purchases: SmartLab35 at none against LightStop's 2. LightStop's advantage is update cadence (fortnightly vs every 5 weeks) and iOS requirement (14.0.0 vs 16.0). On price, ads and device support there is nothing between them.

Both are free to download. LightStop sells 2 in-app purchases, starting at $6.99 per month. SmartLab35 asks for nothing beyond the download.

SmartLab35 ships an update every 5 weeks, LightStop fortnightly. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | SmartLab35 | LightStop |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Size | 23 MB | 40 MB |
| Requires iOS | 16.0 | **14.0.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SANTIAGO FRANCISCO RAMIREZ SONNTAG](https://appshunter.io/developer/1721708676) | [Albert Bove Gracia](https://appshunter.io/developer/6776248501) |

## What reviewers say

### SmartLab35

[App page](https://appshunter.io/ios/app/smartlab35/id6474482009)

**Features:** macOS Compatibility

**In-app purchases:** none


### LightStop

[App page](https://appshunter.io/ios/app/lightstop/id6776248499)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| LightStop Pro Monthly | $6.99 | per month |
| LightStop Pro Yearly | $49.99 | per year |


## Frequently asked questions

### Is SmartLab35 free?

SmartLab35 is free to download, with no in-app purchases.

### Is LightStop free?

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

### Do SmartLab35 or LightStop have ads?

Neither SmartLab35 nor LightStop shows ads.

### Which is updated more often, SmartLab35 or LightStop?

SmartLab35 ships an update every 5 weeks, and LightStop fortnightly. Most recently, SmartLab35 was updated on September 23, 2026 and LightStop on September 10, 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.*