Comparison

SMART Testz vs るびポン

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

Head to head
About

SMART Testz

Features
Read full description

Test the basic functions of the phone and provide a grade.

About

るびポン

Features
Read full description

RubiPon is a Safari extension that adds furigana (kana reading hints) to kanji on the Japanese web pages you visit — news sites, encyclopedias, official announcements, anything. FEATURES - One-tap furigana on any Japanese page, with an optional auto-on setting — live-updating pages (social feeds, live blogs) are supported too - Three dictionaries to choose from: the built-in system analyzer, the IPA dictionary, and the large-vocabulary Sudachi dictionary (with optional Core/Full downloads) - 600+ built-in reading-correction rules for dates, counter words and common idiomatic readings (e.g. 1月1日, 3階, 2泊3日, 二人) - A personal user dictionary for names and technical terms - Hiragana-first mode: kana becomes the main text with small kanji above — great for early readers - Romaji mode: show readings in romaji instead of hiragana — handy for beginning learners of Japanese - Fine display control (ruby size, line height, spacing), remembered per site (up to 100 sites) - Privacy by design: all analysis runs on your device. Nothing you browse is ever sent to any server. No ads, no tracking. HOW TO USE 1. Open the app and enable RubiPon in Settings > Safari > Extensions 2. Open a Japanese page and tap the extension icon in the address bar 3. Tap "Show furigana" Note: readings are generated automatically and may occasionally be wrong; correction rules and the user dictionary help you fix them. Network access is used only when downloading the optional Sudachi dictionaries.

Screenshots

SMART Testz4 screens
るびポン4 screens

Verdict

The call

The clearest difference is update cadence: るびポン at every 3 days against SMART Testz's fortnightly. SMART Testz's advantage is iOS requirement (13.0 vs 15.4). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

SMART Testz ships an update fortnightly, るびポン every 3 days. The most recent releases landed on November 7, 2026 and November 9, 2026 respectively.

Scorecard2 real differences · 4 level
SMART Testz versus るびポン: the parameters behind the verdict, then further details
ParameterSMART Testzるびポン
PriceFreeFree
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS13.0 — better15.4
Further details — not scored
Size5 MB140 MB
Age rating4+4+
DeveloperFutureDial Inc.Kotatsu RIN

In-app purchases

None

SMART Testz

No in-app purchases

None

るびポン

No in-app purchases

Questions

Is SMART Testz free?
SMART Testz is free to download, with no in-app purchases.
Is るびポン free?
るびポン is free to download, with no in-app purchases.
Do SMART Testz or るびポン have ads?
Neither SMART Testz nor るびポン shows ads.
Which is updated more often, SMART Testz or るびポン?
SMART Testz ships an update fortnightly, and るびポン every 3 days. Most recently, SMART Testz was updated on November 7, 2026 and るびポン on November 9, 2026.

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