Comparison

Letteringo vs postin

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

Head to head
About

Letteringo

Experience the joy of traditional letter writing in a digital format. Craft handwritten notes with customizable paper and ink, send them anonymously to strangers, or find pen pals to exchange messages with. Collect virtual stamps from around the world as you build your correspondence history.

Highlights
  • Handwritten letter writing with custom fonts and paper
  • Anonymous 'letter in a bottle' feature
  • Find and connect with pen pals
  • Collect virtual stamps from different countries
  • Personalize home screen and writing elements
  • Multi-language support with translation
  • Securely archive and re-read correspondence
Features
Read full description

Letteringo is a heartfelt correspondence app that brings the real letter-writing experience back to the digital world. Pick a paper, take your pen, and write what comes from within. Whether to a loved one, an old friend you've lost touch with, or someone you've never met — let your letter drift with the wind until it finds someone to read it. — FEATURES — WRITE LETTERS BY HAND • Special handwritten-style fonts • Authentic paper textures: beige, kraft, parchment • Envelopes, wax seals, and varied design options • Realistic touches like coffee stains, teardrops, and raindrops LETTER IN A BOTTLE (FLYING LETTERS) Send your letter as if dropping it into the sea; let it reach a reader somewhere in the world. These anonymous letters that begin with "Dear stranger…" offer a chance to touch a completely different life. FIND A PEN PAL Reply to incoming letters and keep your correspondence alive. Trace everyone you've met in your "Detective Dossier" and follow your conversations. STAMP COLLECTION Earn stamps from different countries with every letter you receive. Collect rare stamps, fill your album, and share your collection with friends. PERSONALIZATION • Home screen styles: Cloud, Mailbox, Shelf or List • Toggle typewriter key sounds on or off • Envelope colors, paper textures, and handwriting fonts — all yours to choose MULTI-LANGUAGE SUPPORT Turkish, English, German, and Spanish interface. Translate incoming letters with a single tap. ARCHIVE AND HISTORY All your correspondence is securely stored. Travel back in time and re-read your favorite letters. — FOR WHOM? — For those who miss writing letters, creative writers, people looking for pen pals, and anyone tired of the coldness of digital communication. Writing with Letteringo isn't just sending a message — it's creating a moment. Download, write your first letter, and who knows from which city an answer might land at your door.

About

postin

Features
Read full description

A little love, in a postcard. “Thank you for today.” “I can’t wait to see you again.” With postin, turn your favorite photos and a few heartfelt words into a digital postcard for the person you love. Share it through LINE. Your partner can open it in their browser—no app download or account needed. After a date. On a day you wish you could be together. For a birthday or anniversary. Give them a little something to open, smile at, and cherish. ■ Make it yours Add a photo, write a message, and decorate your postcard with handwriting, drawings, and stickers. A stamp is already in place, so you can start creating right away. You can swap it for another one, too. ■ Share through LINE Create a link to your postcard and send it through LINE. Your partner simply opens the link to view the card in their browser—even if they don’t use postin. ■ Open now, or save the surprise Let your partner open the card right away, or choose the date and time it becomes available. Make it a surprise for midnight on their birthday or the morning of your anniversary. Note: Scheduling sets when the postcard can be opened. It does not automatically send a LINE message. Please share the link with your partner in advance. ■ Try your first postcard Create and send a postcard in the tutorial without using a stamp. Start with a photo you love and something you’ve been meaning to say. ■ Stamps and subscriptions Regular postcard sending and share-link creation use stamps. Additional stamps are available through in-app purchases. An optional subscription includes unlimited sending, subscriber-exclusive stationery, and desk backgrounds. Receiving and viewing postcards is free. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours before the current period ends. You can manage or cancel your subscription in your App Store account settings. See the in-app purchase screen for pricing and subscription periods. Terms of Service: https://honey-cucumber-463.notion.site/postin-3adcc260b87780bc9705ff7010973037

Screenshots

Letteringo4 screens
postin4 screens

Verdict

The call

The clearest difference is update cadence: postin at every 2 days against Letteringo's every 3 weeks. Letteringo's advantage is iOS requirement (15.5 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Letteringo sells 5 one-off in-app purchases and postin sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Letteringo ships an update every 3 weeks, postin every 2 days. Both last shipped on October 25, 2026.

Scorecard2 real differences · 7 level
Letteringo versus postin: the parameters behind the verdict, then further details
ParameterLetteringopostin
PriceFreeFree
Rating1.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.5 — better26.0
Further details — not scored
Size168 MB47 MB
Age rating4+4+
DeveloperENVER AMILkeishi yokoi

In-app purchases

5 purchases

Letteringo

One-time5
  • Instant Delivery$0.99
  • 1 Extra Pickup$0.99
  • Extra Delivery$0.99
Show 2 more
  • 5 Extra Pickups$3.99
  • 3 Extra Bottle Sends$3.99
3 purchases

postin

Subscriptions2
  • Subscription Plan (Monthly)$1.991 Month
  • Annual Subscription$19.991 Year
One-time1
  • 5 Stamps$0.29

Questions

Is Letteringo free?
Letteringo is free to download, with in-app purchases available.
Is postin free?
postin is free to download, with in-app purchases available.
Do Letteringo or postin have ads?
Neither Letteringo nor postin shows ads.
Which is updated more often, Letteringo or postin?
Letteringo ships an update every 3 weeks, and postin every 2 days. Most recently, Letteringo was updated on October 25, 2026 and postin on October 25, 2026.

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