Comparison

ARSA(アーサ) vs HEART KNIFE

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

Head to head
About

ARSA(アーサ)

Features
Read full description

ARSA(アーサ)の公式アプリです。 【概要】 ■ アプリ上から24時間いつでも予約が可能 指名予約にも対応しているので担当スタッフのスケジュールを確認してからの予約が可能です。 ■ クーポン お得なクーポンが配信されます。ネット予約時にクーポン利用での予約も可能なので来店時もスムーズに施術頂けます。 ■ スタッフが施術したスタイルを掲載 前もって画像を確認しておけばスムーズなオーダーが可能です。 ■ マイページ機能 予約状況の確認やキャンセルがマイページ上から行えます。スタッフの登録が出来るので前もって担当者を登録しておけばマイページからスムーズな指名予約が可能です。

About

HEART KNIFE

Features
Read full description

This is an application for playing messages of HEART KNIFE's kitchen knife. If you hold your smartphone's camera over the sound waveform engraved on the knife, you can play back the recorded sound. You can listen to messages from the sender with one smartphone at any time any where, so you can always feel close to your important one. You can also create an original kitchen knife with a message like the one you received, so easily send the joy you felt when you received a kitchen knife to the person who is important to you.

Screenshots

ARSA(アーサ)2 screens
HEART KNIFE3 screens

Verdict

The call

The clearest difference is update cadence: HEART KNIFE at monthly against ARSA(アーサ)'s every 16 months. ARSA(アーサ)'s advantage is iOS requirement (8.0 vs 11.0). 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

ARSA(アーサ) ships an update every 16 months, HEART KNIFE monthly. Both last shipped on November 11, 2026.

Scorecard2 real differences · 4 level
ARSA(アーサ) versus HEART KNIFE: the parameters behind the verdict, then further details
ParameterARSA(アーサ)HEART KNIFE
PriceFreeFree
Update frequencyEvery 16 monthsMonthly — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS8.0 — better11.0
Further details — not scored
Size3 MB25 MB
Age rating4+4+
Developershingo kameiSTEELSTYLE K.K.

In-app purchases

None

ARSA(アーサ)

No in-app purchases

None

HEART KNIFE

No in-app purchases

Questions

Is ARSA(アーサ) free?
ARSA(アーサ) is free to download, with no in-app purchases.
Is HEART KNIFE free?
HEART KNIFE is free to download, with no in-app purchases.
Do ARSA(アーサ) or HEART KNIFE have ads?
Neither ARSA(アーサ) nor HEART KNIFE shows ads.
Which is updated more often, ARSA(アーサ) or HEART KNIFE?
ARSA(アーサ) ships an update every 16 months, and HEART KNIFE monthly. Most recently, ARSA(アーサ) was updated on November 11, 2026 and HEART KNIFE on November 11, 2026.

Other comparisons