# Prolab Smart vs Contraction tracker & timer

The clearest difference is in-app purchases: Prolab Smart at none against Contraction tracker & timer's 2. Prolab Smart also leads on iOS requirement (11.0 vs 18.5). Contraction tracker & timer's advantage is update cadence (every 6 weeks vs every 20 months). On price, ads and device support there is nothing between them.

Both are free to download. Contraction tracker & timer sells 2 in-app purchases, starting at $0.99 per 7 days. Prolab Smart asks for nothing beyond the download.

Prolab Smart ships an update every 20 months, Contraction tracker & timer every 6 weeks. The most recent releases landed on September 30, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Prolab Smart | Contraction tracker & timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (27 ratings)](https://appshunter.io/ios/app/prolab-smart/id1548706254/reviews)** | — |
| Number of ratings | **27** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 6 weeks** |
| Monetization | Free | — |
| Size | 187 MB | 13 MB |
| Requires iOS | **11.0** | 18.5 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PROLAB SECURITY TRADING LLC](https://appshunter.io/developer/1548706256) | [Lucas Diaz](https://appshunter.io/developer/1742950982) |

## What reviewers say

### Prolab Smart

[App page](https://appshunter.io/ios/app/prolab-smart/id1548706254)

This app allows you to remotely control and manage your smart home devices from anywhere. It offers features like simultaneous control of multiple devices, scheduling timers, and easy device sharing with family members. Setup is designed to be quick and straightforward.

**Highlights:** Remote device control, Simultaneous multi-device management, Customizable timers, Family device sharing, Plug and play setup

**Features:** macOS Compatibility

**In-app purchases:** none


### Contraction tracker & timer

[App page](https://appshunter.io/ios/app/contraction-tracker-and-timer/id6749600998)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $0.99 | per 7 days |
| Premium | $2.99 | per month |


## Frequently asked questions

### Is Prolab Smart free?

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

### Is Contraction tracker & timer free?

Contraction tracker & timer is free to download, with in-app purchases available.

### Do Prolab Smart or Contraction tracker & timer have ads?

Neither Prolab Smart nor Contraction tracker & timer shows ads.

### Which is updated more often, Prolab Smart or Contraction tracker & timer?

Prolab Smart ships an update every 20 months, and Contraction tracker & timer every 6 weeks. Most recently, Prolab Smart was updated on September 30, 2026 and Contraction tracker & timer on September 16, 2026.

---

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