Diary vs Ullam
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Diary
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Simple and convenient application that will record the best moments for you Privacy Policy: https://thuyetngocluong.github.io/policy_privacy/DiaryApp.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula
Ullam
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Ullam is a calm, private diary for your daily thoughts. No account, no tracking, no servers reading your life — your journal is stored on your iPhone and synced only through your own iCloud. WRITE WITHOUT WORRY • Beautiful, distraction-free editor with rich text, photos and your own emojis • A warm day/night theme that follows the time of day • Color-code each entry by mood, and tag it with a category PRIVATE BY DESIGN • Lock any diary with its own PIN — locked diaries are encrypted with AES-256, using a key derived from your PIN • Face ID / Touch ID unlocks the app; every hidden diary always asks for its PIN • Hidden diaries stay out of your main list and never open without their own PIN • Everything else is protected by your iPhone's built-in data protection and stays on your device or in your personal iCloud. We never see it. FIND ANY MEMORY • Calendar view of your month, with mood at a glance • Filter the calendar by category to instantly find what you wrote • Track your writing streak and daily word goal • Home & Lock Screen widgets: streak, mood, daily goal and a fresh writing prompt OWN YOUR DATA • Start faster with templates: Gratitude, Daily Review, Travel Log, Dream and Goals • Export an encrypted backup protected by a password only you know, and restore it on this or a new device • Share any single entry as Markdown ON-DEVICE AI (PREMIUM) • A writing assistant that helps you continue, rephrase or reflect, plus tag suggestions — running entirely on your device • Requires an iPhone that supports Apple Intelligence, on iOS 26 or later FREE & PREMIUM Ullam is free for up to 10 notes, with multiple and hidden diaries, iCloud sync, widgets and mood insights included. Ullam Premium unlocks unlimited notes, the on-device AI writing assistant, your own templates and PDF export — with a 7-day free trial, then $1.99/month. Start writing today. Your story is worth keeping — privately. Privacy Policy: https://kaspar.works/ullam/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is update cadence: Diary at every 2 days against Ullam's every 2 weeks. Diary also leads on iOS requirement (14.0 vs 18.0). On price, ads, in-app purchases 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
Both are free to download. Diary sells 2 in-app purchases, starting at $1.99 per 7 days and Ullam sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
Diary ships an update every 2 days, Ullam every 2 weeks. The most recent releases landed on October 8, 2026 and October 15, 2026 respectively.
| Parameter | Diary | Ullam |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPod | iPhone, iPad, Mac — better |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 52 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Thuyet Luong | Kaspar Works, LLC |
In-app purchases
Diary
- 1 week subscription3 Days trial$1.997 Days
- Lifetime$19.99
Ullam
- Ullam Premium7 Days trial$1.991 Month
