Folder (hidden data) vs Striprate
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Folder (hidden data)
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Keep your files, photos, passwords, notes, contacts, and to-do lists private โ encrypted on your iPhone, accessible only through the app. โข All your information is encrypted with AES โข The only way to access your content is through the app โข Lock individual sections with biometrics or a PIN โข App Lock secures the entire app when it goes to the background โข No internet connection needed โข All data stays on your iPhone โ no servers, no cloud โข Private contacts โ store secret contacts encrypted on your iPhone โข Private to-do lists for tasks only you can see
Striprate
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Striprate is an offline pool and spa test-strip companion for fast pH, free chlorine, and total alkalinity checks. Dip a compatible generic three-pad strip, frame the pads inside the on-screen guide, and tap Read. Striprate samples pad colors on device, matches them to bundled chart values, and creates water-care estimates scaled to the pool volume and targets you enter. Manual entry is available when lighting or camera conditions are not suitable. WHAT STRIPRATE DOES - Reads compatible generic three-pad pH, free chlorine, and total alkalinity strips - Samples each pad color from the live camera frame on device - Includes manual entry and a built-in sample reading - Matches bundled values for pH 6.2-8.0, free chlorine 0-10 ppm, and total alkalinity 0-240 ppm - Scales displayed adjustment estimates to the pool volume and targets you enter - Supports freshwater pools, saltwater pools, and spas - Lets you override a pad value when the printed strip chart differs - Logs readings with dates, color swatches, notes, and review context - Shows pH, free chlorine, and total alkalinity trends - Exports the local reading log as CSV - Includes sequencing, retest planning, confidence notes, and a water-balance workspace - Adds Reading Review for recording sample source, preserving retest notes, and sharing a concise handoff - Links directly to current CDC home pool testing guidance and the Model Aquatic Health Code PRIVATE BY DESIGN Striprate has no account, no analytics, no tracking, and no developer backend. The camera is used only to sample the three strip pads. Frames are processed live on the device and are not stored or uploaded. Reading history and preferences remain in local app storage unless you choose to export or share them. IMPORTANT SAFETY INFORMATION Displayed values and adjustment amounts are general estimates, not a substitute for the strip or chemical product label, local requirements, or professional water testing. Confirm compatibility and concentration, add chemicals gradually, never mix products, circulate as directed, and retest before another adjustment.
Screenshots
Verdict
The clearest difference is price: Folder (hidden data) at Free against Striprate's $0.99. Striprate's advantage is in-app purchases (none vs 1) and ads (none vs shown). On device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Folder (hidden data) is free to download; Striprate costs $0.99 up front. Folder (hidden data) sells 1 one-off in-app purchase. Striprate asks for nothing beyond the download.
Folder (hidden data) ships an update every 4 weeks, Striprate weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Folder (hidden data) | Striprate |
|---|---|---|
| Price | Free โ better | $0.99 |
| Update frequency | Every 4 weeks | Weekly โ better |
| Ads | Yes | No โ better |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 โ better |
| Further details โ not scored | ||
| Size | 9 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Ezequiel Barreto | Robert Corbin |
In-app purchases
Folder (hidden data)
- Remove Ads$0.99
Striprate
No in-app purchases
Questions
Is Folder (hidden data) free?
Is Striprate free?
Do Folder (hidden data) or Striprate have ads?
Which is updated more often, Folder (hidden data) or Striprate?
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