Lightmark vs Indelible Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Lightmark
This app encourages honest self-reflection by allowing users to record thoughts, emotions, and memories without the ability to edit entries after submission. It supports text, voice, photos, and videos, offering a multi-sensory journaling experience. A unique visual timeline helps users see their journey over time.
- Uneditable entries
- Text, voice, photo, and video recording
- Tag system for organization
- Annual 'Lightmap' visualization
- Daily timeline archive
- Minimalist interface
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Some diaries are written just for yourself. Some moments are meant to be recorded as they truly are. No need for perfection, no need to revise. Writing who you are at that moment is an honest act of existence. Lightmark is a diary app that does not allow editing after writing. It blends a sense of time with emotional expression, gently guiding you to meet yourself. 【 Philosophy · Faithful to the Present 】 Lightmark’s writing approach is inspired by the psychological concepts of “non-judgmental writing” and “immediate recording.” Once submitted, your words cannot be changed—not to limit you, but as a gentle exercise: * Accept your emotions instead of adjusting them; * Capture your thoughts as they were, not rewritten by later understanding; * Let go of “right or wrong” and “perfection,” leaving only your true self. Every Lightmark entry is an echo through time and space. 【 Recording Methods · Multi-Sensory 】 Your feelings aren’t only expressed in words. Lightmark supports multiple sensory recording options, letting you capture emotions naturally: * Text Diary: Quietly write and record inner moments; * Voice Diary: No need to organize language, just speak; * Photo Capture: One image records the world you see; * Video Clips: The authentic sound of life, the most vivid memories; * Tag System: Seamlessly insert tags anywhere in text, freely create multi-level structures (e.g., #emotion/happy, #life/family) to lightly organize your diary. Whether it’s a midnight monologue, a morning ray of light, or a fleeting tear, you can collect it your way. 【 Annual Lightmap · See Your Journey 】 Lightmark’s unique “Lightmap” forms your year in a dot matrix. Each day you write sends ripples across the map. * The more you write, the brighter that day’s light point shines; * You can add marks for special days (Unlock this feature by purchasing the full version.). The Lightmap doesn’t tell you which days you “missed” writing and won’t push you to check in. Instead, it gently shows which days were quiet or full of emotion. It’s the path you’ve walked with yourself—a commemorative map left by time. 【 Timeline Diary · Your Life Chronicle 】 Lightmark uses a “one page per day” design, automatically gathering all texts, photos, voice recordings, and videos of the day into time slices—your daily archive. You’ll find life needs no polish; just capture the moment, and time will weave your story. 【 Design Philosophy · Simple · Gentle 】 Lightmark avoids complex categories, using tags for light management, keeping only the essence of “recording.” You’re not writing tasks, but your heart’s voice. * Minimal interface for immersive writing * No distractions, no ads, no popups * Supports dark mode, fitting the quiet of night 【 Who is it for? 】 * People who want to keep diaries but can’t stick with it * People who want to record emotions but don’t know where to start * Those who love the purity of paper diaries but want better saving and searching * Anyone wanting to practice self-acceptance without being trapped by “perfection” Terms of Use: https://app.qlulu.fun/termsofuse Privacy Poclicy: https://app.qlulu.fun/privacy
Indelible Diary
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Indelible Diary is a diary that preserves your words exactly as you wrote them. Like writing with ink on paper, each word settles into the page. You can correct text while it is still being composed, but once it is confirmed, it cannot be erased or rewritten. Even mistakes remain as a record of that moment. Each page holds one month. Scroll through the dates, swipe sideways between months, or use the month picker to return to any month. Features • An indelible writing experience for confirmed words • One month of diary entries on each notebook-style page • Horizontal swiping between months • Month picker and a shortcut to today • A practice area that does not save what you write • Face ID or Touch ID lock on supported devices • Automatic on-device diary storage Indelible Diary Pro is a one-time purchase that includes: • Full-text search across your diary • Entries from the same date in previous years • Random past entries • Every paper and ink color theme No account registration is required. Terms of Use https://apps.mishimadesign.com/indeliblediary/legal.html#terms-en
Screenshots
Verdict
Lightmark and Indelible Diary are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Lightmark sells 3 in-app purchases, starting at $1.99 per month and Indelible Diary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
| Parameter | Lightmark | Indelible Diary |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (9 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 14 MB | 13 MB |
| Age rating | 4+ | 4+ |
| Developer | 璐 秦 | Mishima Design |
In-app purchases
Lightmark
- Monthly$1.991 Month
- Annual$12.991 Year
- Lifetime$14.99
Indelible Diary
- Indelible Diary Pro$14.99









