Heatmap Studio vs Locck
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Heatmap Studio
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Heatmap Studio shows a table of numbers as a color heatmap. You can start from a blank grid, paste a table, or import a CSV or TSV file. You can edit cells and labels, choose colors, and view basic figures such as the minimum, maximum, and average. Projects are stored in the app on this device. You can export a PNG image or a CSV file. The colors are there to help you view the numbers. Please check important numbers yourself.
Locck
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Title: Locck: Note, Lock, and Never Forget! Traditional note-taking apps turn your ideas into a digital graveyard. Locck doesn’t just store your notes; it keeps them locked in your mind. Write it down, lock it in, and let the smart, persistent reminder system do the rest. Key Features: Unforgettable Reminder System: Your notes stay front and center until you take action or consciously clear them. Minimalist & Clean UI: A distraction-free design built purely to keep you focused on your thoughts and tasks. Quick Capture: Save your thoughts, flash ideas, or tasks in seconds. Priority Control: Customize how persistently each note should demand your attention. Secure your work tasks, grocery lists, or late-night epiphanies with Locck. Once it's locked, it's impossible to forget. Terms and conditions: https://torchingale.com/apps/locck/terms-and-conditions
Screenshots
Verdict
The clearest difference is in-app purchases: Heatmap Studio at none against Locck's 3. Locck's advantage is ads (none vs shown) and update cadence (every 2 days vs every 12 months). On price, 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
Both are free to download. Locck sells 3 in-app purchases, starting at $0.99 per month. Heatmap Studio asks for nothing beyond the download.
Heatmap Studio ships an update every 12 months, Locck every 2 days. The most recent releases landed on October 20, 2026 and September 22, 2026 respectively.
| Parameter | Heatmap Studio | Locck |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 12 months | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Japality Limited | Mete Kagan Musaak |
In-app purchases
Heatmap Studio
No in-app purchases
Locck
- Locck Pro Monthly$0.991 Month
- Locck Pro Yearly$4.991 Year
- Locck - Lifetime$8.99
