Image Timer multiple timers vs SJ Chmod Calculator
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Image Timer multiple timers
Read full descriptionHide full description
There are six timers that you can use by entering the time, and six timers that you can use by setting the time in advance, and a stopwatch. If the Image Timer is in the background when the timer reaches time, a notification will notify you.
SJ Chmod Calculator
Read full descriptionHide full description
SJ Chmod Calculator is a free iOS app designed for system administrators, developers, and Linux/Unix users who need to quickly and accurately calculate, understand, and convert Unix file permissions. With its clear and intuitive interface, the app makes it easy to switch between numeric and symbolic representations of file permissions. SJ Chmod Calculator offers two simple methods to obtain or verify file or directory access rights. First mode: Numeric code input (755, 644, 600, etc.) The user enters a 3-digit chmod value. The app instantly displays: β A permissions table (read, write, execute) for each category: User (owner), Group, Others β The equivalent symbolic notation (e.g., rwxr-xr-x) Second mode: Interactive table input The user simply checks the boxes for read (R), write (W), and execute (X) for each category. The app automatically calculates: β The corresponding numeric chmod value β The Unix symbolic permission string Key features: β Instant conversion between numeric and symbolic notation β Visual table of permissions by category (user, group, others) β Intuitive interface, easy to use β Free application A practical tool for all Linux/Unix users Whether youβre a developer, system administrator, student, or advanced user of Unix/Linux systems, SJ Chmod Calculator helps you manage file permissions quickly and effortlessly.
Screenshots
Verdict
The clearest difference is in-app purchases: Image Timer multiple timers at none against SJ Chmod Calculator's 5. Image Timer multiple timers also leads on ads (none vs shown). SJ Chmod Calculator's advantage is update cadence (weekly vs every 51 months). On price, device support and iOS requirement there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. SJ Chmod Calculator sells 5 one-off in-app purchases. Image Timer multiple timers asks for nothing beyond the download.
Image Timer multiple timers ships an update every 51 months, SJ Chmod Calculator weekly. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.
| Parameter | Image Timer multiple timers | SJ Chmod Calculator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 51 months | Weekly β better |
| Ads | No β better | Yes |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 β better |
| Further details β not scored | ||
| Size | 427 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Tomoki Hagano | Stephane JAILLIARD |
In-app purchases
Image Timer multiple timers
No in-app purchases
SJ Chmod Calculator
- A coffee$0.99
- A cookie$2.99
- A lemon tart$4.99
Show 2 moreShow fewer
- No ads$4.99
- A pizza$9.99
Questions
Is Image Timer multiple timers free?
Is SJ Chmod Calculator free?
Do Image Timer multiple timers or SJ Chmod Calculator have ads?
Which is updated more often, Image Timer multiple timers or SJ Chmod Calculator?
Other comparisons















