Comparison

Henji vs Cardabase

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

Head to head
About

Henji

Features
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Henji is a keyboard with AI replies that learns how you actually write. Five generations a day, free forever — no card required. Copy the message you received, tap "Generate a reply," and in about three seconds a draft appears right in the text field — in your own phrasing, at your own level of formality. It works in any app: LINE, Slack, email. No app switching. 【Key Features】 ■ Generate a reply Turn a copied message into a reply in your voice, inserted straight into the field. ■ Compose a new message by voice Not just replies. Tap the mic, say what you want to send, and Henji writes it. If you have text on the clipboard, it can be used as the starting draft. ■ Personas Automatically switch tone for teammates, managers, or customers. You can also pick a different persona when regenerating. ■ Redo it by voice Say "make it shorter" or "offer three time slots" and Henji rewrites the draft with that instruction applied. ■ Go back to a version you liked Every regenerated draft is kept. Step back and forward through them and insert the one you prefer. ■ Quick replies One-tap insertion of the lines you send all day (works offline). 【About Full Access】 The Henji Keyboard works as a quick-reply keyboard without Full Access. Full Access is required only for AI generation and voice. Even with Full Access granted, Henji never collects or transmits your keystrokes. 【AI providers and your data】 Replies are generated using AI from Google (Gemini). Only when you tap "Generate a reply" is the target text — along with your instruction and your style rules — sent through Henji's server (henji.ai) to that provider. What you send is not stored on the server and is never used to train AI models. We explain this and ask for your consent during onboarding. If you decline, you can still use Henji as a quick-reply keyboard. 【Pricing】 ■ Free (no card required) Five generations a day, forever — ten on your very first day. Your allowance resets the next day. Regenerating does not count against it, so you can redo a draft as many times as you like. ■ Henji PRO (monthly or yearly, auto-renewing) For when five a day is not enough. New users can start with a 7-day free trial, after which the subscription renews automatically at $5.99 per month, or $59.99 per year. The yearly plan works out to about $5.00 per month, which saves about two months compared with paying monthly. ・Payment is charged to your Apple ID account at confirmation of purchase ・The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the period ・Your account is charged for renewal within 24 hours prior to the end of the current period ・You can cancel any time in Settings > Apple ID > Subscriptions on your iPhone ・Any unused portion of a free trial is forfeited when you purchase a subscription ・Terms of Use: https://henji.ai/en/terms ・Privacy Policy: https://henji.ai/en/privacy Quick replies work offline on both plans.

About

Cardabase

Features
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Cardabase: Turn Any Custom Database into Smart Flashcards Cardabase redefines how you store, organize, and master complex information. Unlike traditional flashcard apps limited to simple front-and-back text, Cardabase empowers you to build structured, fully customizable databases tailored precisely to your unique learning needs. Whether you are studying financial indicators, technical concepts, legal precedents, or foreign vocabulary, Cardabase allows you to define personalized key-value fields—such as formulas, target benchmarks, source URLs, and category tags—for every single record. Key Features: - Custom Databases: Create tailored decks with flexible key-value fields for any domain. - Dynamic Flashcard Engine: Choose exactly which fields appear on the front and back of your cards for targeted study sessions. - Mastery Tracking: Monitor recall accuracy, track mastered items, and review progress seamlessly. - Clean & Intuitive: Built with modern SwiftUI and SwiftData for a high-performance, distraction-free environment. Stop forcing your knowledge into rigid templates. Organize your data your way and turn complex information into active memory with Cardabase today.

Screenshots

Henji4 screens
Cardabase4 screens

Verdict

The call

The clearest difference is ads: Henji at none against Cardabase's shown. Cardabase's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, 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. Henji sells 2 in-app purchases, starting at $5.99 per month and Cardabase sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly daily. The most recent releases landed on November 8, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 4 level
Henji versus Cardabase: the parameters behind the verdict, then further details
ParameterHenjiCardabase
PriceFreeFree
Update frequencyDailyDaily
AdsNo — betterYes
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS26.017.0 — better
Further details — not scored
Size12 MB5 MB
Age rating4+4+
DeveloperYUYA YOSHIDAKENICHIRO Suzuki

In-app purchases

2 purchases

Henji

Subscriptions2
  • Henji PRO7 Days trial$5.991 Month
  • Henji PRO7 Days trial$59.991 Year
1 purchases

Cardabase

One-time1
  • Cardabase Pro$4.99

Questions

Is Henji free?
Henji is free to download, with in-app purchases available.
Is Cardabase free?
Cardabase is free to download, with in-app purchases available.
Do Henji or Cardabase have ads?
Cardabase shows ads; Henji does not.
Which is updated more often, Henji or Cardabase?
Henji ships an update daily, and Cardabase daily. Most recently, Henji was updated on November 8, 2026 and Cardabase on November 6, 2026.

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