Work Diary vs CogniLog
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Work Diary
This app helps professionals meticulously record their daily work activities, including hours, notes, and photo evidence. It offers robust export options for timesheets and spreadsheets, and a private, offline experience. Prove your accomplishments and manage your work history with ease.
- Log start/end times and notes
- Attach photos and documents
- Export as PDF timesheet or Excel
- Built-in document scanner
- Calendar and weekly stats view
- Daily reminders
- 100% offline operation
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Do you forget what work you did yesterday? Can you prove what you accomplished this week? My Work Diary is the daily work journal built for professionals who need a reliable record of their hours, work and photo evidence every single day. WHAT YOU CAN LOG - Start time and end time, including overnight shifts - What you worked on, notes and observations - Tomorrow's plan - Photos, scanned documents and PDFs as evidence - Work categories PROVE IT ON PAPER - Export your timesheet as a PDF - Or as an editable Excel spreadsheet - Built-in document scanner for receipts, job sheets and delivery notes YOUR WORK HISTORY - Calendar view - see every logged day - Weekly stats - total hours at a glance - Weekly and monthly goals to keep you on track - Bookmark important days and filter to them - Search past entries instantly - Daily reminder so you never miss a day NEW: iCLOUD SYNC (PRO) - Entries, photos and documents saved in your own iCloud - Lost or changed your phone? Your diary comes back - Stays in sync across your iPhone and iPad BUILT FOR Engineers, Supervisors, Teachers, Drivers, Nurses, Freelancers, Security Guards, Field Workers, Construction Teams and anyone who needs a daily work record with proof. WHY MY WORK DIARY Your boss asks what you did all month? Open My Work Diary. Show them everything. Salary dispute? Your hours are logged. Unfair treatment? You have dated photo proof. Memory fading? Your diary never forgets. PRIVATE BY DESIGN - Works fully offline - no internet needed - No account or sign-up required - Your data stays on your iPhone, or in your own private iCloud with Pro - never on our servers - No ads, ever Free to download. My Work Diary Pro is an optional upgrade for unlimited photos and scans, timesheet exports and iCloud sync, available as a yearly subscription or a one-time lifetime purchase. Your hard work deserves to be remembered. Your effort deserves to be proven. Download My Work Diary - free today. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://ankit10555.github.io/privacy2.html
CogniLog
This app helps you document your work, capturing decisions and reasoning. It allows an AI assistant to read your log and answer questions about your past activities. Entries are plain text with Markdown support, and a visual almanac helps you navigate your history.
- AI-powered work log analysis
- Plain text entries with Markdown
- Visual almanac for historical navigation
- Project-based channels and #tags
- Cross-device sync via iCloud
- Import from other note-taking apps
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CogniLog is a work log you can read at any distance. In the Almanac view, step back to the year to see which weeks went to which projects, open a week to skim a few lines from each entry, then tap one to read the whole thing. You write the way you normally would, and CogniLog works out the short versions for each view. If you work with AI agents, they can read and write to the same log, so you and your agents work from the same record. On a Mac, an assistant like Claude, or a coding agent like Claude Code or Codex, connects to CogniLog's built-in MCP server. It can look up your past work, answer questions about it, and log what it did and why. Those entries sync to your iPhone, right next to yours. It fits any kind of work. People use it for code, client projects, research, writing and school. On iPhone Write an entry in the app, from a Lock Screen or Home Screen widget, from the share sheet, or with Siri and Shortcuts. Entries are plain text with light Markdown that formats as you type. Add a #tag and the entry is tagged. Channels keep separate projects apart. You can ask for things back, too. Say "What did I log today in CogniLog" and Siri lists your entries. In Shortcuts you can pull up entries by day, week, channel or tag, search the whole log, or hand a week of entries to Apple Intelligence for a summary. (Summaries need a device that supports Apple Intelligence.) The Almanac view shows your log by week, month and year. Tap a day to see what happened, then open any entry. On iPhone Duo, CogniLog uses both sides of the fold, with your log on one side and your filters or the editor on the other. On Mac CogniLog for Mac uses the same log, synced through your iCloud, and it can do more: • The Almanac view fits a whole year on one screen. Hover over a day for a summary of what happened. • Import from apps like Apple Notes, Day One, Obsidian and Bear, or from a folder of Markdown files, and export everything back out as Markdown whenever you want. • The built-in MCP server lets your AI assistants read your log and write to it. • Log from the menu bar or from Spotlight without switching away from what you're doing. If you have a Mac, get CogniLog there too. Your iPhone and your Mac write to the same log. Privacy Your entries stay on your devices and in your own iCloud. The app sends anonymous usage counts that never include anything you write and aren't linked to you. About CogniLog is made by Rivet & Rune. Questions, bugs and ideas go to support@rivetrune.com, and each one gets read.
Screenshots
Verdict
The clearest difference is rating: CogniLog at 5.0 against Work Diary's 4.3. CogniLog also leads on in-app purchases (none vs 2) and update cadence (every 2 weeks vs every 4 weeks). Work Diary's advantage is iOS requirement (17.0 vs 26.2). On price, review sentiment, ratings volume and ads 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. Work Diary sells 2 in-app purchases, starting at $5.99 per year. CogniLog asks for nothing beyond the download.
CogniLog holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
Work Diary ships an update every 4 weeks, CogniLog every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | Work Diary | CogniLog |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (3 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 3 | 3 |
| Update frequency | Every 4 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad | iPhone, Mac |
| Requires iOS | 17.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 3 MB | 53 MB |
| Age rating | 4+ | 4+ |
| Developer | Ankit Raj | Rivet Rune LLC |
Customer experience
Work Diary
CogniLog
In-app purchases
Work Diary
- Work Diary Pro$5.991 Year
- Work Diary Pro Lifetime$12.99
CogniLog
No in-app purchases









