ScratchQ vs Storage Manager
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ScratchQ
This app serves as a digital scratchpad for everyday calculations, allowing users to save annotated versions for future reference. It features a color-coded system for organizing calculations and a custom keyboard for easy editing and access to operators.
- Save annotated calculations
- Color-coded file system
- Custom keyboard for editing
- Easy access to arithmetic operators
- Organize everyday math problems
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ScratchQ is a scratch pad for all of the "back-of-the-envelope" calculations that we do in everyday life. Whether it is calculating the commission earned on a sale, the square footage of a room, or your grade point average, ScratchQ allows you to save an annotated version of the calculation that you can refer back to again and again. A simple color-coded file system allows you to categorize your calculations. ScratchQ comes with a custom keyboard that allows for easy editing of your saved calculations and easy access to the most common arithmetic operators.
Storage Manager
Reclaim storage space and boost device performance with this app. It automatically detects and removes duplicate photos, contacts, and screenshots. Additionally, it offers media compression and calendar optimization to keep your device organized and running smoothly.
- Duplicate photo, contact, and screenshot removal
- Media compression for photos and videos
- Calendar event optimization
- Swipe-to-delete functionality
- Additional convenience widgets
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Nano Cleaner is a handy app that helps improve your device's performance by cleaning up storage. Its easy-to-use interface and powerful features make it simple to reclaim space and organize your files, keeping your device running smoothly. Main Features: Duplicate Removal: Automatically detects and deletes unnecessary duplicates of photos, contacts and screenshots, helping you save space on your device. Media Compression: Compresses videos and photos to free up additional storage space without sacrificing quality. Calendar Optimization: Quickly removes old or unnecessary events from your calendar to keep it organized and clutter-free. Swipe-to-Delete: Easily swipe through photos and remove unwanted ones with a simple gesture. Additional Widgets: Provides extra widgets for added convenience and functionality. Nano Cleaner is the ultimate solution for optimizing your device. It removes duplicate files, optimizes contacts and calendars, compresses files, and offers manual sorting options, all in one convenient package. Keep your device clean, organized, and performing at its peak with Nano Cleaner. Reclaim valuable storage space and optimize your device's performance today. By using Nano Cleaner, you agree to: - Privacy Policy: https://cherkagoapps.com/privacy.html - Terms & Conditions: https://cherkagoapps.com/terms.html
Screenshots
Verdict
The clearest difference is price: Storage Manager at Free against ScratchQ's $7.99. Storage Manager also leads on update cadence (every 2 weeks vs every 22 months) and ratings volume (4K vs 1). ScratchQ's advantage is rating (5.0 vs 4.4) and in-app purchases (none vs 7). On device support and iOS requirement 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
Storage Manager is free to download; ScratchQ costs $7.99 up front. Storage Manager sells 7 in-app purchases, starting at $6.99 per 7 days. ScratchQ asks for nothing beyond the download.
ScratchQ holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Storage Manager has 4K ratings behind it against 1, so its average is the more settled of the two.
ScratchQ ships an update every 22 months, Storage Manager every 2 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.
| Parameter | ScratchQ | Storage Manager |
|---|---|---|
| Price | $7.99 | Free — better |
| Rating | 5.0 (1 ratings) — better | 4.4 (4K ratings) |
| Positive reviews | — | 63.9% of reviews |
| Number of ratings | 1 | 4K — better |
| Update frequency | Every 22 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 1 MB | 90 MB |
| Age rating | 4+ | 4+ |
| Developer | Autoolmaq LLC | Cherkago Apps |
Customer experience
ScratchQ
Storage Manager
Bugs and requests
ScratchQ
Not enough reviews yet to summarise bugs or requests.
Storage Manager
Reported bugs
2 issues- Deleting user photos unexpectedly
- Crashes and freezes on older devices
Requested features
2 requests- Ability to clean without interrupting phone usage
- Improved user interface and guidance
In-app purchases
ScratchQ
No in-app purchases
Storage Manager
- Weekly Premium 7 days free7 Days trial$6.997 Days
- Premium Access3 Days trial$6.997 Days
- Premium Access3 Days trial$9.997 Days
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- Premium Access7 Days trial$9.997 Days
- Premium Access$29.991 Year
- Year Premium Full Access$39.991 Year
- Lifetime Access$39.99









