Comparison

Memkeep vs hagu.

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

Head to head
About

Memkeep

Features
Read full description

Memkeep is a shared diary for the people you love most. Some moments are too good to keep to yourself — and too personal to post on social media. Memkeep is a private, end-to-end encrypted memory book you build together with your partner, your closest friends, or your family. No followers. No ads. No algorithm. Just the two (or three, or four) of you. WHY MEMKEEP IS DIFFERENT • Truly private — every photo and word is end-to-end encrypted by default. Not a paid upsell. Not "encryption in transit." Real E2E. We can't read your memories. Nobody can but you and the people you invite. • Works offline, syncs later — built on a local-first architecture, so the app is fully usable on a plane, on a hike, or anywhere with no signal. Your entries sync automatically the moment you reconnect. • Built for two (or a few) — Memkeep is designed for couples and small friend groups. Create a shared space, invite your partner or your closest friends, and start writing. Family use is supported too. • No social media patterns — no likes, no follower counts, no public profiles, no algorithm deciding what you see. Just your shared timeline, in chronological order, the way memories actually happen. WHAT YOU CAN DO • Create a shared diary space and invite the people who matter • Write entries with text, photos, and dates • Comment and react on each other's memories • Browse a clean month-by-month timeline of your story • Keep a separate personal diary alongside your shared spaces • Use it on a flight, in the mountains, or anywhere offline PERFECT FOR • Couples — capture date nights, trips, anniversaries, and the small daily moments that make a relationship • Long-distance partners — stay close even when you're apart, with a private feed only you two can see • Close friend groups — document trips, inside jokes, and the years you spend together • Families — build a shared memory book across generations, without putting your kids on Instagram PRIVACY YOU CAN VERIFY Most "private" diary apps store your data in plain text on someone else's server. Memkeep doesn't. Your words and photos are encrypted on your device before they ever leave it. Even we, the developers, can't read them. Your shared diary belongs to you and the people you invited — nobody else. LOCAL-FIRST, BY DESIGN Memkeep is built on a modern local-first architecture (powered by Jazz CRDT). That means: instant writes, no spinners, no "trying to reconnect" errors, and a real app that keeps working when your signal doesn't. START TODAY Open Memkeep, create your first shared space in under a minute, and invite your favorite person. Build your story, one memory at a time. The little moments are the ones you'll want to remember in five years — Memkeep is where they go. Made with care for couples, friends, and families who believe their memories are theirs to keep. — — — Questions, feedback, or feature requests? We'd love to hear from you: hello@memkeep.app

About

hagu.

This app allows parents to quietly track breastfeeding and childcare activities. It accommodates optional input for milk volume and missed days, featuring a gentle interface suitable for late-night use. The app provides a calm timeline and weekly progress summaries.

Highlights
  • One-tap recording for left/right/both breasts
  • Milk, expressed milk, and diaper logging
  • Optional volume input
  • Automatic night mode
  • Quiet timeline view
  • Weekly progress summaries
Features
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hagu. は、授乳や育児の記録を できるだけ静かに続けられるように作ったアプリです。 量がわからなくても大丈夫。 記録できなかった日も、責めません。 深夜に開いても、まぶしくない。 ただ、今のあなたの隣にいられるように。 【主な機能】 ・左 / 右 / 両方を1タップで記録 ・ミルク / 搾乳 / おむつ記録 ・量の入力はすべて任意 ・深夜モード自動対応 ・静かなタイムライン ・週次レター「今週のあなたへ」

Screenshots

Memkeep4 screens
hagu.4 screens

Verdict

The call

The clearest difference is in-app purchases: hagu. at none against Memkeep's 1. hagu. also leads on update cadence (every 3 days vs every 6 weeks) and device support (3 vs 1). On price, ads and iOS requirement 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. Memkeep sells 1 one-off in-app purchase. hagu. asks for nothing beyond the download.

UpkeepUpdate frequency

Memkeep ships an update every 6 weeks, hagu. every 3 days. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

Scorecard3 real differences · 5 level
Memkeep versus hagu.: the parameters behind the verdict, then further details
ParameterMemkeephagu.
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 6 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.415.1 — better
Further details — not scored
Size92 MB64 MB
Age rating12+4+
DeveloperBurak Harun YILDIZTATSUYA YASUMOTO

In-app purchases

1 purchases

Memkeep

One-time1
  • Notebook$7.99
None

hagu.

No in-app purchases

Questions

Is Memkeep free?
Memkeep is free to download, with in-app purchases available.
Is hagu. free?
hagu. is free to download, with no in-app purchases.
Do Memkeep or hagu. have ads?
Neither Memkeep nor hagu. shows ads.
Which is updated more often, Memkeep or hagu.?
Memkeep ships an update every 6 weeks, and hagu. every 3 days. Most recently, Memkeep was updated on November 13, 2026 and hagu. on November 10, 2026.

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