Simple Diary vs My Size Notes
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Simple Diary
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Forget the pressure of writing long entries. This app makes journaling simple and fun, letting you quickly jot down a single thought, a quick feeling, or the day's highlight. It's designed to fit seamlessly into your busy life, helping you build a positive habit without the fuss. "What's on your mind today?" "How was that meeting?" "Did something make you smile?" Your one-liners become a personal timeline, a digital scrapbook of your journey. Easily look back at your entries through a clean calendar view or a simple list, and rediscover those small, significant moments that make up your unique story. It's about making mindfulness easy and accessible. If you're looking for a simple way to reflect, track your mood, or just keep a quick record of your days, the "One-Liner Journal" is perfect for you. Start capturing your story, one line at a time!
My Size Notes
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"My Size Notes" is a simple notebook app that helps you record and organize measurements such as size, weight, and location. Keep track of furniture dimensions, storage plans, DIY notes, handmade projects, field collection data, and more. Whether you’re at home or out shopping, you can check the measurements you need at a glance. Build a My Size Notes that fits your needs. Features - Clean, intuitive interface - Switch between card view for readability and list view for quick scanning Core Functions - Record length, weight, capacity/volume, area, and price - Add notes and location information - Switch between units (cm/inch, g/oz, etc.) - Organize with tags and collections - Toggle card view or list view - Filter by tags, keywords, favorites, and collections - Register custom labels for each category (e.g., “Height,” “Width”) to streamline input Use Cases - Save furniture measurements for room makeovers or storage planning - Keep notes for DIY, crafting, and handmade projects - Store appliance model numbers and installation space details - Organize data on collected insects, plants, minerals, and other specimens Pro Version (Paid) - No ads - Unlimited items (Free version: up to 10) - Create more than one collection - Multi-tag filtering (Free version: single tag) - Backup and restore using JSON - One-time purchase (no subscription)
Screenshots
Verdict
The clearest difference is in-app purchases: Simple Diary at none against My Size Notes's 1. My Size Notes's advantage is update cadence (monthly vs every 3 months). On price, ads, device support 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
Both are free to download. My Size Notes sells 1 one-off in-app purchase. Simple Diary asks for nothing beyond the download.
Simple Diary ships an update every 3 months, My Size Notes monthly. The most recent releases landed on May 15, 2026 and September 12, 2026 respectively.
| Parameter | Simple Diary | My Size Notes |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Monthly — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 8 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Kana Uchida | Hikari Mano |
In-app purchases
Simple Diary
No in-app purchases
My Size Notes
- Pro Version$2.99









