Comparison

Diary vs MonoLine

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

Head to head
About

Diary

A private journaling app designed for reflection and personal growth. It offers a peaceful space to record daily thoughts, set simple goals, and reflect without pressure. A gentle cat companion is present throughout your journaling experience.

Highlights
  • Private journaling
  • Goal setting
  • Daily reflection
  • Cat companion
  • No pressure or streaks
  • Ad-free experience
Features
Read full description

Diary – Hope Tree A quiet place to write, reflect, and grow — with a gentle cat by your side. Diary – Hope Tree is a simple, private growth diary for everyday life. There’s no pressure to be productive, positive, or consistent. Just a calm space to show up as you are. Write a few words about your day. Note a small step toward something you care about — even if it’s for tomorrow. Reflect honestly, even when things feel hard. Nothing more is required. A gentle way to grow Diary — write what happened today, even the ordinary things Hope — keep a simple goal you’re growing toward Reflection — a few honest words are enough Action — note a small step, past or future Tool - to support the hope No streaks. No scores. No pressure to “do better”. A quiet companion Your cat doesn’t guide, judge, or demand anything. It simply stays with you — day by day — as you write and grow at your own pace. Private by design Private — your entries are yours No ads Nothing is shared This is your personal space. Always. For people who... Want to keep a diary without feeling guilty Prefer honesty over positivity Need a calm place during busy or difficult times Care about privacy and simplicity If you want a quiet place to exist, reflect, and grow — Hope Tree is here. It is a space for reflection, intention-setting, and gentle daily practices. Private by design Your entries are yours No ads No subscription required Nothing is shared Your diary stays personal, simple, and calm.

About

MonoLine

This minimalist journaling app simplifies daily reflection by requiring only one photo and one line of text per day. It offers a private, ad-free experience with no complex organizational systems, allowing users to build a visual archive of their moments over time. The app is designed for those who find traditional journaling overwhelming.

Highlights
  • One entry per day enforced
  • Feed and Grid views
  • Honest streak tracking
  • Private by design
  • One-time purchase
  • Export to JSON or Markdown
Read full description

Most journaling apps fail because they ask too much. MonoLine asks for almost nothing. One photo. One line. Once a day. That's it. There's no blank page to stare at. No formatting toolbar. No folders or tags or organizational systems to maintain. You open the app, add a photo from your day, write a single line about it, and you're done. The whole thing takes thirty seconds. And then it compounds. After a week you have a week. After a month you have a month. After a year you have 365 moments—a grid of photos and the line you wrote beneath each one—that no highlight reel or social feed will ever give you back. What Makes MonoLine Different One entry per day, enforced: The constraint is the feature. You can't overwrite today or add a second entry. You show up, you write, you're done. Three ways to see your life: Feed view shows your entries chronologically. Grid view shows your photos as a visual archive. Both views let you tap any day to read what you wrote. Your streak, honestly tracked: A number in the corner of the app. No gamification, no pressure—just your record, kept honestly. Private by design: No ads. No AI reading your entries. No social features. Your journal is yours. Yours, with one purchase: No subscription. No trial countdown. No in-app upsells. You buy MonoLine once and it's yours—and with Family Sharing, the people you live with get it too. Export anytime: Download your full journal as JSON or Markdown. Your words don't live only in an app. For People Who Kept Abandoning Day One MonoLine is for the person who bought a beautiful notebook and filled three pages. For the person who downloaded four journaling apps and deleted them all. For the person who knows that one honest line beats a thousand words they never wrote. Start your first entry today.

Screenshots

Diary4 screens
MonoLine4 screens

Verdict

The call

The clearest difference is price: Diary at Free against MonoLine's $1.99. MonoLine's advantage is ratings volume (3 vs 1). On rating, review sentiment, update cadence 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

CostPrice · In-app purchases · Ads · Monetization

Diary is free to download; MonoLine costs $1.99 up front. Diary sells 1 one-off in-app purchase and MonoLine sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Diary against 5.0 for MonoLine. Both are backed by a comparable volume of ratings — 1 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on October 30, 2026 and November 5, 2026 respectively.

Scorecard3 real differences · 7 level
Diary versus MonoLine: the parameters behind the verdict, then further details
ParameterDiaryMonoLine
PriceFree — better$1.99
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings13 — better
Update frequencyFortnightlyFortnightly
AdsNoNo
In-app purchasesYesYes
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size71 MB49 MB
Age rating4+4+
DeveloperKam Hung CheungTheron Vickery

Customer experience

Diary

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

MonoLine

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Diary

One-time1
  • Hope Tree Companion Plus Lifetime$3.99
1 purchases

MonoLine

One-time1
  • Lifetime Access$2.99

Questions

Is Diary free?
Diary is free to download, with in-app purchases available.
Is MonoLine free?
MonoLine costs $1.99, and also offers in-app purchases.
Which has better reviews, Diary or MonoLine?
Diary and MonoLine are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do Diary or MonoLine have ads?
Neither Diary nor MonoLine shows ads.
Which is updated more often, Diary or MonoLine?
Diary ships an update fortnightly, and MonoLine fortnightly. Most recently, Diary was updated on October 30, 2026 and MonoLine on November 5, 2026.

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