Comparison

Postfun vs OITOKU

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

Head to head
About

Postfun

Connect with people globally by exchanging real paper postcards. Discover new friends, collect unique cards and stamps, and share a piece of your world. The more you send, the more you receive.

Highlights
  • Send and receive real postcards
  • Connect with international users
  • Collect cards and stamps
  • Discover new cultures
  • Global postcard community
Features
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Discover the joy of real postcard exchange! With Postfun, you can send and receive real paper postcards from people all around the world. Find new friends, collect beautiful cards and stamps, and share a piece of your world with others. --- HOW IT WORKS 1. Request an address and a unique Postcard ID in the app. 2. Write and send a real postcard to the address you received. 3. When your postcard arrives, another Postfun user will send one back to you! 4. Register the Postcard ID when you receive a card and thank the sender. 5. Keep sending and receiving postcards — the more you send, the more you get! --- WHY YOU’LL LOVE POSTFUN • Exchange real postcards — not digital ones • Connect with people from different countries • Discover new cultures and languages • Collect cards and unique stamps • Enjoy a relaxing, creative hobby loved by millions --- Join the global postcard community and make someone’s day with a card! Start your postcard journey today — with Postfun! --- SUBSCRIPTION PRICING AND TERMS Postfun offers two auto-renewing subscription options: $2.99 per month $24.99 per year These prices are for United States customers. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence. The subscription will automatically renew unless turned off in your Apple Account Settings at least 24 hours before current period ends. You can go to your Apple Account settings to manage your subscription and turn off auto-renew. Your Apple Account will be charged when the purchase is confirmed. Read the terms and conditions here - https://ostasoft.com/postfun/terms Read the privacy policy here - https://ostasoft.com/postfun/policy

About

OITOKU

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No likes. No replies. No followers. An app for leaving a few words at a real place. ■ Built to feel safe - No sign-up required: start right away, with no email address or phone number to enter. - Minimal location use: tied only to where a message is placed, and never used for anything else. - A healthy community: we operate the service in line with our guidelines and respond to reports within 24 hours. - Visible only up close: messages appear only when you come within about 25 m. ■ Leave a trace at the place itself A feeling you had while traveling. A fondness for somewhere you happened to stop. Something you want to hold onto, even if you don't need to tell anyone. Leave the trace that you were there, in a few words. ■ Like social media, but not social media No like counts. No followers. No replies. No numbers to chase, no one to judge you — just your own few words, left behind. For anyone who finds social media a little tiring. ■ Hold up your camera, and find someone's words Hold up your phone's camera and messages left at that place appear in front of you in AR. Someone may find them, or no one may. And that's fine. 【Features】 - Leave a message (a few words) at your current location - Hold up your camera to find messages nearby - Report and block features, so you can use it with confidence - Save the AR view to your photos - Add message slots (in-app purchase) - Sign in with Apple or Google to carry your data to a new device - Available in Japanese and English Leave a trace at the place itself. Go ahead — leave a few words.

Screenshots

Postfun4 screens
OITOKU3 screens

Verdict

The call

The clearest difference is ads: OITOKU at none against Postfun's shown. OITOKU also leads on device support (3 vs 1). On price, update cadence, in-app purchases 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. Postfun sells 2 in-app purchases, starting at $2.99 per month and OITOKU sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Postfun ships an update every 6 weeks, OITOKU monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Postfun versus OITOKU: the parameters behind the verdict, then further details
ParameterPostfunOITOKU
PriceFreeFree
Rating4.4 (61 ratings) — better—
Positive reviews70.3% of reviews—
Number of ratings61 — better—
Update frequencyEvery 6 weeksMonthly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationAd-supported—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.615.0 — better
Further details — not scored
Size45 MB123 MB
Age rating9+17+
DeveloperIlya OstashkovTakashi Kanamori

In-app purchases

2 purchases

Postfun

Subscriptions2
  • Postfun - Monthly subscription$2.991 Month
  • Postfun - Annual subscription$29.991 Year
3 purchases

OITOKU

One-time3
  • メッセージ枠 +10$0.49
  • メッセージ枠 +20$0.99
  • メッセージ枠 +30$1.99

Questions

Is Postfun free?
Postfun is free to download, with in-app purchases available.
Is OITOKU free?
OITOKU is free to download, with in-app purchases available.
Do Postfun or OITOKU have ads?
Postfun shows ads; OITOKU does not.
Which is updated more often, Postfun or OITOKU?
Postfun ships an update every 6 weeks, and OITOKU monthly. Most recently, Postfun was updated on October 24, 2026 and OITOKU on October 25, 2026.

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