Comparison

InfoGen vs First diary, Theme Diary

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

Head to head
About

InfoGen

Features
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■ About this app An ultra-high performance memo app that allows you to centrally manage information such as text, multimedia, income and expenditures. It records information generated daily using various approaches and supports future decision-making! The carefully designed UI allows for extremely fast data writing/reading! It can be effectively used in a variety of fields. The information you record can be organized into data containers called "memo objects." ■ Main Features ▼ Versatile Memo Features You can record not only text but also multiple items such as images, drawings, videos, audio, PDFs, and 3D data (USDZ files), and organize them together. With intuitive operation, you can record and view your entries within just a few taps, making daily documentation smooth and stress‑free. ▼ Create Purpose‑Specific Memos from Templates Convenient templates are available so you can instantly create memos tailored to your needs. Whether it’s ideas, income/expense notes, diaries, or other general‑purpose types, these templates make memo creation extremely efficient. ▼ Calendar & Map Views In addition to the standard list view, you can use a time‑based calendar view and a location‑based map view. Perfect for travel, business trips, and many other situations. ▼ Separate “Content” View In the “Content” section where text is recorded, you can compare and edit the content of completely different memo objects side by side. No need to switch back and forth between memos, enabling an unprecedented level of fast and efficient editing. ▼ Income & Expense Management Alongside your memo content, you can also record daily income and expenses. Useful for tracking travel costs, household budgets, or tax‑related records. You can also check monthly and yearly financial statistics. ▼ Hierarchical Tags & Advanced Search Even if you a large amount of record entries, organization is easy. Tagging and search filtering help you quickly find the memo you need. Tags use a hierarchical structure, minimizing the effort required to navigate large numbers of tags. ▼ Create PDF Files from “Content” and Images Using the “Content” and images you’ve saved as manuals, recipes, or catalogs, you can generate PDF files. You can prepare manuals in advance and instantly share them using this feature. ▼ Easy Text Extraction with OCR & Speech Recognition OCR lets you extract text from images, and speech recognition converts audio into text. Perfect for moments when typing feels like too much work. ▼ Pinned Memo Feature Pin frequently checked memos so they always appear at the top of the main list. Great for reminders you tend to forget. ▼ Notifications for Scheduled Times You can record not only past entries but also future schedules, and set notifications for them. Combined with the “Cycle” memo type, it works as a daily habit reminder. ▼ Tip to Clear Up Any Confusion Tap the Tips button on each screen to view a quick guide to that screen’s operations. If you’re unsure how to use a feature or what a button does, just tap Tips for help. ■ Notes - This app has been developed with the utmost care, but in the unlikely event that any written data is lost or damage occurs as a result of using the app, we cannot provide any compensation. - Please try not to close the app while writing multimedia or other data. This may cause problems. - When the image size saved by this app exceeds 1024 pixels in either direction, it will be resized so that the larger pixel count is 1024. - Please avoid using the app in a way that places an excessive load on the device. ■ Sample image credits Zhenyu Luo Michael Fousert Marek Piwnicki Bram Bergers Danny Greenberg Colin Watts (from Unsplash) ■ Background image credits OKUMONO https://sozaino.site/ ■ Contacts If you notice anything when using this app, or if you have any requests for additional functions, please contact. X: https://twitter.com/Ayasata_info Mail: inquiry3493@gmail.com

About

First diary, Theme Diary

This app helps you journal your daily experiences with themes, emotions, and media. Record events with photos, videos, and location, and organize them privately. Premium features offer unlimited entries and media.

Highlights
  • Themed event recording
  • Emotion and level tracking
  • Add photos and videos
  • Location information
  • Secret themes and events
  • Passcode and biometric protection
  • iCloud sync
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A themed diary app that allows you to write as many times as you like in a day. In addition to images, videos, and location information, you can also record your emotions at the time. Recommended as a first diary --- theme --- Write down events based on the theme. Since the theme is decided, there is no need to worry about what to write. theme example ·family ·child ·pets ·work ·study ·hobby ·gourmet ·trip ·love affair You can add accents with emojis and colors. You can change the display order by long-pressing the list. You can hide it by setting it to a secret theme. --- event --- Since it is written in short sentences (150 characters or less), it is easy to write and lasts a long time. You can also write in long sentences. (Premium feature) Since I write about events by theme, I don't have to worry about not having anything to write about. You can write as many times as you like in a day, so it can also be used to keep track of time. You can add up to 4 photos or videos. (Expandable with premium features) You can also add location information, which is useful for recording your food trips and travels. You can add tags and display events with the same tag across themes. You can hide it by setting it as a secret event. --- Photos and videos --- Photos and videos are loaded and displayed from the photo library. You can rest assured that the storage data capacity of the app will not increase even if you add many photos and videos. If you delete it from your photo library, you will no longer be able to view it from the app, but the thumbnail will remain. Photos taken from the app are saved in the photo library, so Please set permissions for full access to your photo library. --- Emotions and Levels --- You can record emotions (moods and feelings) and their levels in events. The same emotion can be expressed in different degrees, such as being happy or very happy. It is displayed in emojis and meters for easy viewing and understanding. --- Privacy --- You can hide themes and events by making them "secret." You can rest assured that it will not be seen by anyone who does not know how to display it. You can also hide the display method description itself. You can protect the entire app by setting a passcode. Your passcode is securely stored in your keychain. It also supports biometric authentication such as Face ID and Touch ID. --- iCloud --- Data is saved in iCloud, so there is no need for backup operations. You can sync with multiple devices such as iPhone and iPad. --- Premium Features --- - No character limit - No limit on number of images - Hide advertisements - Shows current weather and temperature Please see below for terms and conditions regarding subscription and use of paid features. 1. Privacy Policy: https://gsoft.jp/privacypolicy/ 2. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

InfoGen4 screens
First diary, Theme Diary4 screens

Verdict

The call

The clearest difference is in-app purchases: InfoGen at none against First diary, Theme Diary's 7. InfoGen also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads 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. First diary, Theme Diary sells 7 in-app purchases, starting at $0.99 per 2 months. InfoGen asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 1, 2026 and June 1, 2026 respectively.

Scorecard2 real differences · 6 level
InfoGen versus First diary, Theme Diary: the parameters behind the verdict, then further details
ParameterInfoGenFirst diary, Theme Diary
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 3 weeksEvery 3 weeks
AdsYesYes
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better17.0
Further details — not scored
Size17 MB131 MB
Age rating4+4+
DeveloperTakashi ShikoneG-SOFT

In-app purchases

None

InfoGen

No in-app purchases

7 purchases

First diary, Theme Diary

Subscriptions2
  • Show weather$0.992 Months
  • Hide ads$0.991 Month
One-time5
  • Number of images$1.99
  • Character limit$1.99
  • Show weather$3.99
Show 2 more
  • Hide ads (Unlimited)$9.99
  • Unlock passcode$19.99

Questions

Is InfoGen free?
InfoGen is free to download, with no in-app purchases.
Is First diary, Theme Diary free?
First diary, Theme Diary is free to download, with in-app purchases available.
Do InfoGen or First diary, Theme Diary have ads?
Both InfoGen and First diary, Theme Diary show ads.
Which is updated more often, InfoGen or First diary, Theme Diary?
InfoGen ships an update every 3 weeks, and First diary, Theme Diary every 3 weeks. Most recently, InfoGen was updated on September 1, 2026 and First diary, Theme Diary on June 1, 2026.

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