# 17on: A Haiku Poetry Journal — Your personal haiku journal.

> Haiku composition and journaling app with syllable counting and creative tools. (iPhone/iPad app by IROIRO LLC.)

- Source: https://appshunter.io/ios/app/17on-a-haiku-poetry-journal/id6443743198 (this page in markdown: same URL + `.md`)
- Developer: [IROIRO LLC](https://appshunter.io/developer/1435048158)
- Category: Lifestyle, Productivity
- Price: Free with in-app purchases
- Rating: 5.00/5 from 5 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 246 MB
- Languages: English
- Released: 2026-02-10
- Data updated: 2026-07-08
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/17on-a-haiku-poetry-journal/id6443743198/reviews.md

## What is 17on?

Capture life in three lines.
17on (pronounced "seventeen-on") is a haiku composition and journaling app: a quiet space to write in the traditional 5-7-5 form or contemporary variations. A built-in syllable counter lets you focus on the words, not the count.

A QUIET SPACE FOR DAILY HAIKU
No social feed. No algorithm. No pressure. Just you, your words, and the form that has shaped poets for centuries. Whether you keep a daily haiku practice, capture a single observation, or write your first 5-7-5, 17on stays out of the way.

INTELLIGENT SYLLABLE COUNTING
A real-time 5-7-5 syllable counter, line by line. No more counting on your fingers. 17on uses a dictionary-based approach backed by over 126,000 English words from the CMU Pronouncing Dictionary, plus hidden language data from the EDRDG dictionary.

COMPOSITION STYLES
Choose the form that fits the moment.

Traditional (5-7-5). Where it all begins.
Modern (4-4-6). Say more with less.
Lune (5-3-5). Distilled to essence.
Monoku. One line, one moment.
Freeform. No rules, pure expression.
...and more.

INSPIRATION WHEN YOU NEED IT
Swipe through an inspiration feed of timeless haiku from masters including Bashō, Issa, Buson, and Shiki. When enabled, on-device AI generates original haiku using seasonal kigo (季語), processed privately on your phone and never uploaded to the cloud.

YOUR PERSONAL HAIKU JOURNAL
Every haiku you write is saved to your journal, stored locally on your device. Search by keyword, hashtag, date, or composition style. Revisit any moment you have written down. Optional backup to Google Drive, only if you choose.

BEAUTIFUL TO SHARE
Turn any haiku into a shareable image. Choose from a collection of stationery backgrounds, pick a pen style, and select an ink color to match the mood. Share to Instagram, Messages, or anywhere else inspiration belongs.

COLLECT STATIONERY
Earn Pages by composing, sharing, and exploring the inspiration feed. Trade them at the gacha machine for new papers, pens, and inks. From everyday finds to rare treasures, build a writing kit that feels uniquely yours.

DESIGNED FOR DELIGHT
A subtle haptic on each completed line. A gentle animation when a haiku is complete. Small details that make the practice feel as intentional as the poetry.

FREE (AD SUPPORTED)
- 31 haiku across Traditional and Modern formats
- Full journal and search
- Share your creations, styled your way
- Stationery gacha for paper, pen, and ink
- Inspiration feed with famous haiku
- On-device AI haiku (where supported)

PREMIUM (ONE-TIME PURCHASE)
- Unlimited haiku
- All composition styles
- Watermark removal
- Complete creative freedom

WHY 17ON
In a world of endless scrolling, 17on offers something different: a calm, distraction-free space for brief, meaningful expression. No social feeds. No algorithmic pressure. Just you, your words, and the timeless Japanese poetry form that has inspired writers for centuries. Begin your haiku practice today.

17on is made by IROIRO, LLC. Syllable data courtesy of Carnegie Mellon University. Japanese dictionary data from the Electronic Dictionary Research and Development Group (CC BY-SA). Famous haiku courtesy of the Haiku Society of America. Your haiku are yours alone. AI features use a stock on-device model with no training on user content.

## Key features

- Intelligent syllable counting
- Five composition styles
- AI-generated haiku inspiration
- Personal haiku journal
- Shareable haiku images
- Stationery collection

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Premium Unlock | $4.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/17on-a-haiku-poetry-journal/id6443743198/reviews.md

### 5/5 — New User

*2026-02-18*

Just tried this App for the first time and liking it very much! Has lots of information to get you started and understanding Haiku. A great way to help you express your feelings.

## Frequently asked questions about 17on

### What is 17on?

17on is a haiku composition and journaling app designed to help users express themselves through poetry. It offers intelligent syllable counting, multiple composition styles, and tools for sharing creations.

### Does 17on have ads?

No, 17on is ad-free. The app offers a free version with core features and an optional one-time premium purchase for unlimited access and all composition styles.

### How does the syllable counting work in 17on?

17on uses a dictionary-based approach with over 126,000 English words from the CMU Pronouncing Dictionary for accurate syllable counts. It provides real-time feedback as you write.

### What composition styles are available in 17on?

17on offers Traditional (5-7-5), Modern (4-4-6), Lune (5-3-5), Monoku (one line), and Freeform (no rules) composition styles. The free version includes Traditional and Modern formats.

### Can I get inspiration for my haiku in 17on?

Yes, 17on features an inspiration feed with haiku from masters and on-device AI that generates original haiku using seasonal themes. This AI processing is done privately on your device.

### How can I share my haiku from 17on?

You can transform your haiku into shareable images in 17on by choosing from various stationery backgrounds, customizing fonts, and selecting ink colors. These can be shared to platforms like Instagram and Messages.

### What is the premium version of 17on?

The premium version of 17on is a one-time purchase that unlocks unlimited haiku composition, all five composition styles, and complete creative freedom. The free version offers limited haiku and specific formats.

### How often is 17on updated?

The latest version of 17on is 1.0.4, last updated on March 29, 2026. The app was initially released on February 10, 2026.

## Version history (last 5 releases)

### 2.0.1 — 2026-07-06

A few gentle refinements for your daily practice.

What's New in 2.0.1:
• Missed a day? Bridge the lapse with Pages and bring your streak back to your best, all in one step.
• A new meter shows how close your next stationery pull is to a guaranteed new item.
• Your daily Pages bonus is now steady and dependable.
• Set your companion's sanctuary to the real-world season or its own.
• Smoother share editing: tap outside any element to deselect.

Thank you for writing with us.
-17on

### 2.0.0 — 2026-06-09

Your words now bring a quiet companion to life.

What's New in 2.0:
• Write haiku to hatch it, shaped by your voice, and raise it as it grows into a form all its own.
• Care for it in a seasonal sanctuary, private and on-device.
• Keep a daily streak to earn Pages and open milestone chests.
• Place stickers on your haiku and collect seasonal papers.
• Smoother sharing, clearer dark mode, and a natural back-swipe.

Thank you for writing with us.
-17on

### 1.2.1 — 2026-05-31

This release brings your haiku to your home screen and your journal more room to grow.

New in 1.2.1:
• Streak pills on the calendar mark your consecutive writing days.
• Tap a home-screen widget to land right on that exact haiku.
• Widgets now show the style name and include your on-device AI haiku, not just famous ones.
• The free journal now holds 31 haiku, a full month of daily writing.
• Premium writers can now share cards without the 17on watermark.
• Fixed a memory issue that could cause a crash while sharing.

Thank you for writing with us.
-17on

### 1.1.1 — 2026-05-18

- Smoother haiku saving, a cleaner app startup and general stability improvements.

### 1.1.0 — 2026-05-12

Introducing Google Drive Sync! Your haikus and stationery unlocks are now backed up and available across all your devices. We've also added syllable overage badges to the compose screen and improved overall app stability.

## More apps by IROIRO LLC

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All apps by IROIRO LLC: https://appshunter.io/developer/1435048158

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-08.*