Comparison

Calc vs MMD立体視

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

Head to head
About

Calc

This app adds a fun, interactive calculator experience with cute character reactions and customizable designs. It also features a unique 'Performance Mode' for playing music and hidden 'SP Answer Actions' for special character responses.

Highlights
  • Cute character reactions with button presses
  • Customizable calculator themes
  • Performance Mode for music playback
  • Hidden SP Answer Actions
  • Paid character DLCs available
  • Voice lines for each character
Features
Read full description

A little more joy in your calculations, every day. Desktop Mate now has a sister app! Calculator - Desktop Mate Widgets is a digital calculator you can use with your favorite characters — and the first release in the new Desktop Mate Widgets series. ■ Enjoy Cute Character Reactions Every time you press a calculator button, the character will speak that number and strike a pose. Press "=" to get the answer — though sometimes they might struggle a little to figure it out! Pet or poke the character's head for special reactions too. Enjoy your favorite character's movements and expressions as you calculate. ■ Customize with Character-Themed Designs Swap out the calculator buttons and background to match your character's style. Each character comes with multiple design options, so you can mix and match to suit your mood or the moment. ■ Performance Mode: Play Music on Your Calculator! Tap the music note button to switch from calculator mode to Performance Mode. The calculator keys function like piano keys, and the character will sing along to whatever you press. Hold "+" or "-" to shift notes by a semitone, and multi-key presses are supported too. With a little practice, you might be able to pull off a real performance! Share your session on social media and enjoy it with everyone. ■ SP Answer Actions: Find the Hidden Numbers Certain calculation results trigger special character reactions. From a triple "777" to fun number combinations, each character also has their own unique numbers that set off a special response. See how many hidden reactions you can find! ■ Ready to Use Right Away: Aieru-tan Launch the app and you're ready to go with Aieru-tan, the official mascot character of infiniteloop. Aieru-tan is a 16-year-old high school student who works part-time at infiniteloop. She loves programming and gaming, and her occasionally sharp tongue is all part of her charm. Since her debut in 2012, she has appeared in Desktop Mate and many other projects as a beloved face of infiniteloop. ■ More Character DLCs for a More Personal Experience This app also offers paid additional character DLC. The "Hatsune Miku DLC" will be available at launch, with more characters to be added over time in step with the Desktop Mate series lineup. Each DLC features newly recorded voice lines tailored to each character, so you can enjoy your favorite character's voice and reactions every time you use the calculator. More characters will be added over time, in line with the Desktop Mate series lineup. And this is just the beginning — more Desktop Mate Widgets apps are on the way. Stay tuned! Note: When using additional character DLC, please also review the guidelines set by each character's rights holder.

About

MMD立体視

Features
Read full description

「MMD立体視」は、お手持ちのMMD(MikuMikuDance)モデルを、顔とディスプレイの角度を計算し、表示を意図的に引き延ばすことで立体的に表示するビューアアプリです。 ■ 顔追跡による立体視表示 iPhoneのフロントカメラ(ARKit)で頭の位置をリアルタイムに検出し、画面を「窓」に見立てた非対称フラスタム投影で表示します。頭を動かすと、それに合わせてキャラクターの見え方が変化し、奥行きのある立体感を体験できます。カメラを使わずジャイロセンサーで代用する追跡モードにも対応しています。 ■ 幅広いMMDファイル形式に対応 PMX / PMD形式のモデル、VMD形式のモーションを読み込めます。ZIP形式でまとめられたモデル一式もそのまま取り込み可能です。読み込んだファイルは「ライブラリ」に自動保存され、次回からすぐに呼び出せます。 ■ 表示設定 ・シェーダーを選択でき、モデルの表示表現を変更できます。 ・物理演算を選択でき、揺れものの精度と負荷のバランスを調整できます ・セルフシャドウ / 影を落とす / アウトライン表示のON・OFF切り替え ・半透明素材向けのテクスチャ透明スキャン ■ モーション・配置調整 読み込んだモデルをライブラリに保存してVMDモーションを切り替えられます。 配置調整画面では、モデルの位置 / 回転 / 大きさをジョイスティックで調整できます。 ■ シーン表示 地面の表示 / 非表示とサイズを調整できます。 ■ 3D Gaussian Splattingの表示にも対応 MMDモデルに加えて、PLY形式の3D Gaussian Splattingデータを読み込んで表示できます。 Gaussian Splattingの位置 / 回転 / 大きさも、MMDモデルと同じ操作で調整できます。

Screenshots

Calc4 screens
MMD立体視3 screens

Verdict

The call

The clearest difference is in-app purchases: MMD立体視 at none against Calc's 11. MMD立体視 also leads on update cadence (daily vs weekly). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calc sells 11 one-off in-app purchases. MMD立体視 asks for nothing beyond the download.

UpkeepUpdate frequency

Calc ships an update weekly, MMD立体視 daily. The most recent releases landed on October 18, 2026 and September 30, 2026 respectively.

Scorecard2 real differences · 8 level
Calc versus MMD立体視: the parameters behind the verdict, then further details
ParameterCalcMMD立体視
PriceFreeFree
Rating4.2 (42 ratings) — better—
Positive reviews78.1% of reviews—
Number of ratings42 — better—
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size156 MB128 MB
Age rating4+4+
DeveloperインフィニットループToshiaki Ichikawa

In-app purchases

11 purchases

Calc

One-time11
  • Kasane Teto$2.99
  • Zundamon$2.99
  • Koharu Rikka$2.99
Show 8 more
  • Natsuki Karin$2.99
  • Hanakuma Chifuyu$2.99
  • Additional Character MEIKO$2.99
  • Additional Character KAITO$2.99
  • Additional Character Kagamine Rin$2.99
  • Additional Character Kagamine Len$2.99
  • Additional Character Megurine Luka$2.99
  • Additional Character Hatsune Miku$2.99
None

MMD立体視

No in-app purchases

Questions

Is Calc free?
Calc is free to download, with in-app purchases available.
Is MMD立体視 free?
MMD立体視 is free to download, with no in-app purchases.
Do Calc or MMD立体視 have ads?
Neither Calc nor MMD立体視 shows ads.
Which is updated more often, Calc or MMD立体視?
Calc ships an update weekly, and MMD立体視 daily. Most recently, Calc was updated on October 18, 2026 and MMD立体視 on September 30, 2026.

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