Timer 555 Calculator vs 222 Self Storage
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
222 Self Storage
Manage your self-storage account with ease. This app provides location details, payment options, and the ability to rent units directly. Access contact information and get directions to your storage facility.
- Location information
- Account payment
- Unit rental
- Contact details
- Directions
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Our 222 Self Storage App Includes: • Location information and features for 222 Self Storage. • Customers can pay their accounts and log-in. • Rent units inside our iOS App. • Contact and directions. Thank you for being a customer at Berks Storage we are proud to serve our Reading and Berks County community for over 20 years.
Screenshots
Verdict
The clearest difference is rating: 222 Self Storage at 5.0 against Timer 555 Calculator's 3.9. 222 Self Storage also leads on in-app purchases (none vs 1). Timer 555 Calculator's advantage is update cadence (every 3 months vs every 13 months). On price, review sentiment, ratings volume and ads 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. 222 Self Storage asks for nothing beyond the download.
222 Self Storage holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 8 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Timer 555 Calculator ships an update every 3 months, 222 Self Storage every 13 months. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.
| Parameter | Timer 555 Calculator | 222 Self Storage |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (8 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 8 — better | 4 |
| Update frequency | Every 3 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 13.2 | 13.2 |
| Further details — not scored | ||
| Size | 3 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Siu Yuen Ho | Reading Berks Storage, LLC. |
Customer experience
Timer 555 Calculator
222 Self Storage
In-app purchases
Timer 555 Calculator
- Unlock Pro feature$0.99
222 Self Storage
No in-app purchases
Questions
Is Timer 555 Calculator free?
Is 222 Self Storage free?
Which has better reviews, Timer 555 Calculator or 222 Self Storage?
Do Timer 555 Calculator or 222 Self Storage have ads?
Which is updated more often, Timer 555 Calculator or 222 Self Storage?
Other comparisons
