Comparison

On The Lock vs OpenRead

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

On The Lock

This app allows you to display a single, important note, to-do list, or photo directly on your device's Lock Screen. It offers customization options for text, layout, and background, with features like reminders and iCloud backup.

Highlights
  • Lock Screen memo display
  • To-do list integration
  • Photo display on Lock Screen
  • Customizable layouts and appearance
  • Reminders and D-day tracking
  • iCloud backup
  • Home and Lock Screen widgets
Features
Read full description

On The Lock is a simple memo app that keeps one important thing visible on your Lock Screen. On The Lock helps you keep quick notes, todos, photos, and today’s context where you actually notice them: the Lock Screen. Write a memo the moment it comes to mind, turn it into today’s todos, and keep your next step visible with Live Activity. Use Home Screen and Lock Screen widgets for quick capture and check-off. Add photos for visual context, connect Calendar for today’s remaining events, set a target date/D-day, and customize layouts, colors, text size, alignment, and background skins. Organize with categories, reminders, completed items, archives, iCloud backup, and an option to hide sensitive content while your device is locked. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

OpenRead

Features
Read full description

Find your documents and focus on reading. OpenRead brings PDFs, documents, presentations, and spreadsheets into one on-device library. CONNECT A FOLDER ONCE Choose a folder in the Files picker. OpenRead finds supported documents in that folder and its subfolders. Add or disconnect folders whenever you need to. On iOS, access is limited to locations you select and allow. FIND THE RIGHT FILE Filter by file type, search file names, and sort by recent files or name. Open a document directly from the list. READ IN A VIEW THAT FITS Zoom and navigate PDF pages. Read HWP, HWPX, DOC, and DOCX content in a mobile reading layout. Move through PPTX slides and explore XLS, XLSX, and CSV sheets. Saved reading positions help you pick up where you left off. MAKE TEXT COMFORTABLE Adjust body text in the text reader. A separate slider in the More menu changes interface text size in the library, menu, and information pages. KEEP DOCUMENTS ON YOUR DEVICE No account or sign-in is required. OpenRead does not upload your documents or use remote conversion. Downloaded documents can be read offline. Original copies, parsed data, and reading positions stay on your device. Cloud-only files must be downloaded first. SUPPORTED FORMATS PDF, HWP, HWPX, DOC, DOCX, PPTX, XLS, XLSX, CSV, TXT, Markdown, EPUB, ODT, and RTF. Legacy PPT files are unsupported; convert them to PPTX or PDF. Password-protected documents, complex formatting, macros, and embedded objects may have limited support. Rendering depends on document structure and device capabilities. Reading features have no ads, in-app purchases, subscriptions, or app-imposed document-count limit. Terms, privacy information, and help are available in the More menu. Support: david.hwang@kakao.com

Screenshots

On The Lock4 screens
OpenRead4 screens

Verdict

The call

The clearest difference is in-app purchases: OpenRead at none against On The Lock's 5. OpenRead also leads on ads (none vs shown) and update cadence (every 2 days vs every 4 days). On price and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. On The Lock sells 5 in-app purchases, starting at $1.99 per month. OpenRead asks for nothing beyond the download.

UpkeepUpdate frequency

On The Lock ships an update every 4 days, OpenRead every 2 days. The most recent releases landed on October 25, 2026 and October 19, 2026 respectively.

Scorecard4 real differences · 6 level
On The Lock versus OpenRead: the parameters behind the verdict, then further details
ParameterOn The LockOpenRead
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews75.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 4 daysEvery 2 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod
Requires iOS26.015.1 — better
Further details — not scored
Size110 MB43 MB
Age rating4+4+
DeveloperJayAppKyoungChan Hwang

In-app purchases

5 purchases

On The Lock

Subscriptions2
  • Monthly Premium$1.991 Month
  • Yearly Premium$14.991 Year
One-time3
  • Lifetime Premium (Discount)$12.99
  • Lifetime Premium$19.99
  • Lifetime Premium$34.99
None

OpenRead

No in-app purchases

Questions

Is On The Lock free?
On The Lock is free to download, with in-app purchases available.
Is OpenRead free?
OpenRead is free to download, with no in-app purchases.
Do On The Lock or OpenRead have ads?
On The Lock shows ads; OpenRead does not.
Which is updated more often, On The Lock or OpenRead?
On The Lock ships an update every 4 days, and OpenRead every 2 days. Most recently, On The Lock was updated on October 25, 2026 and OpenRead on October 19, 2026.

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