# Timer 555 Calculator vs Small Lovely

The clearest difference is review sentiment: Timer 555 Calculator at 100% against Small Lovely's 18%. Timer 555 Calculator also leads on rating (3.9 vs 1.3). Small Lovely's advantage is in-app purchases (none vs 1) and update cadence (monthly vs every 3 months). On price, ads and device support there is nothing between them.

Both are free to download. Timer 555 Calculator sells 1 one-off in-app purchase. Small Lovely asks for nothing beyond the download.

Timer 555 Calculator holds the better App Store score, 3.9 against 1.3. Both are backed by a comparable volume of ratings — 8 and 32 respectively. Written reviews point the same way: 100% of Timer 555 Calculator's written reviews are positive against 18% of Small Lovely's.

Timer 555 Calculator ships an update every 3 months, Small Lovely monthly. The most recent releases landed on October 21, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Timer 555 Calculator | Small Lovely |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (8 ratings)](https://appshunter.io/ios/app/timer-555-calculator/id834044557/reviews)** | [1.3 (32 ratings)](https://appshunter.io/ios/app/small-lovely/id921419852/reviews) |
| Number of ratings | 8 | **32** |
| Positive reviews | **100.0% of reviews** | 18.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 3 MB | 10 MB |
| Requires iOS | 13.2 | **7.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siu Yuen Ho](https://appshunter.io/developer/814088527) | [勇军 曾](https://appshunter.io/developer/897816002) |

## What reviewers say

### Timer 555 Calculator

[App page](https://appshunter.io/ios/app/timer-555-calculator/id834044557)

Calculate monostable and astable circuits for electronics projects. Determine pulse width and frequency, find component combinations, and save/upload data. Supports multiple languages.

**Highlights:** Monostable circuit pulse width calculation, Astable circuit frequency calculation, Component combination finder, Save component values to CSV, Upload CSV via AirDrop/iCloud Drive, Multi-language support

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Pro feature | $0.99 | one-time |


### Small Lovely

[App page](https://appshunter.io/ios/app/small-lovely/id921419852)

This utility app offers smart tracking, camera, memo, and cell phone alert functionalities. It helps users keep track of devices and capture moments, with a background GPS feature for location tracking. Be aware that continuous GPS use can impact battery life.

**Highlights:** Smart tracking function, Camera function, Memo function, Cell phone alert function, Background GPS location tracking

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Timer 555 Calculator free?

Timer 555 Calculator is free to download, with in-app purchases available.

### Is Small Lovely free?

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

### Which has better reviews, Timer 555 Calculator or Small Lovely?

Timer 555 Calculator is rated higher. Timer 555 Calculator averages 3.9 out of 5 from 8 ratings, while Small Lovely averages 1.3 from 32 ratings.

### Do Timer 555 Calculator or Small Lovely have ads?

Neither Timer 555 Calculator nor Small Lovely shows ads.

### Which is updated more often, Timer 555 Calculator or Small Lovely?

Timer 555 Calculator ships an update every 3 months, and Small Lovely monthly. Most recently, Timer 555 Calculator was updated on October 21, 2026 and Small Lovely 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.*