Timer 555 Calculator vs Small Lovely
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Timer 555 Calculator
Calculate monostable and astable circuits for electronics projects. Determine pulse width and frequency, find component combinations, and save/upload data. Supports multiple languages.
- 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
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This app is used to calculate monostable and astable circuit. Features * Calculate pulse width of monostable circuit * Calculate frequency of astable circuit * Find out combination of components making a desire pulse width in monostable circuit * Find out combination of components making a desire frequency in astable circuit * Saving component values in CSV file * Upload generated CSV files via AirDrop or iCloud Drive * Support English, German, French, Italian, Spanish, Portuguese, Japanese, Korean, Russian
Small Lovely
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.
- Smart tracking function
- Camera function
- Memo function
- Cell phone alert function
- Background GPS location tracking
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Four main functions: Smart tracking function Camera function Memo function Cell phone alert function Battery disclaimer: Small Lovely app may occasionally use GPS in the background to determine the sticker's location.Continued use of GPS running in the background can dramatically decrease battery life.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Timer 555 Calculator | Small Lovely |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (8 ratings) — better | 1.3 (32 ratings) |
| Positive reviews | 100.0% of reviews — better | 18.1% of reviews |
| Number of ratings | 8 | 32 — better |
| Update frequency | Every 3 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.2 | 7.0 — better |
| Further details — not scored | ||
| Size | 3 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | 勇军 曾 |
Customer experience
Timer 555 Calculator
Small Lovely
In-app purchases
Timer 555 Calculator
- Unlock Pro feature$0.99
Small Lovely
No in-app purchases
Questions
Is Timer 555 Calculator free?
Is Small Lovely free?
Which has better reviews, Timer 555 Calculator or Small Lovely?
Do Timer 555 Calculator or Small Lovely have ads?
Which is updated more often, Timer 555 Calculator or Small Lovely?
Other comparisons
