Comparison

Muscle Counter vs SIXCORE

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

Head to head
About

Muscle Counter

Features
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A workout timer that reads your reps and remaining seconds out loud, so you can keep your eyes off the screen and focus on the workout. ■ Voice guidance - Reps, seconds left and countdowns are read aloud - Movement cues for each phase, such as "Down", "Hold" and "Up" - Heads-up for the next exercise and rest, plus your own exercise notes - Option to speak cues only the first time (later reps use sounds and vibration) ■ 75 ready-made templates - Fat burn (HIIT), core and abs, lower body, upper body, posture and stretching, morning and evening routines - Add a template as a workout with your own sets and rest, or as a single exercise for your own routines ■ See the form in 3D - Check moves like squats and burpees from any angle - During a workout, the demo follows the current phase ■ Build your own routines - Three exercise types: Counter for reps, Timer for time, and Guided for step-by-step cues - Combine exercises with rest into a workout ■ Track your consistency - Sessions and minutes this week, and your streak - The last 7 days and your history ■ Also - Sound effects on/off, dark and light themes - Available in English and Japanese This app shows ads.

About

SIXCORE

This AI-powered app analyzes your abs from a single photo, providing a "deviation score" for each abdominal area. It then generates personalized training plans and predicts your progress over time.

Highlights
  • AI abs analysis from one photo
  • Deviation score for 4 abdominal areas
  • Personalized 1-year training plans
  • Progress prediction
  • Visual record of changes
  • Estimated body fat percentage
Features
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腹筋の状態を写真1枚で数値化する、AI腹筋分析アプリ。 上段・中段・下段・腹斜筋の4部位を個別に採点し、 弱い部位に合わせたトレーニングプランを組み立てます。 【腹筋偏差値】 写真を1枚撮るだけで、腹筋の発達度を偏差値で表示します。 割れ方(パック数)と体脂肪率の推定も同時に出ます。 【部位ごとの採点】 腹直筋の上段・中段・下段、腹斜筋を個別に採点。 「どこが弱いのか」が数字と図でわかります。 【AIによる所見】 写真から読み取れる状態と、次の1〜2ヶ月で 何をすべきかをAIが文章で示します。 【1年間のトレーニングプラン】 採点結果をもとに、あなた専用のメニューを1年分。 撮り直すたびに、その先の組み立てが更新されます。 【到達予測】 このまま続けた場合に偏差値がどこまで伸びるかを、 部位ごとに予測します。 【変化の記録】 撮った写真は時系列で並び、before/afterで見比べられます。 スコア入りの記録カードも作れます。 【ご利用について】 ・表示されるスコア、体脂肪率、到達予測は統計的な推定値です。  医学的な測定や診断ではありません。 ・撮影した画像は端末内に保存されます。解析のためGoogleの  生成AIサービスへ送信しますが、当方は画像を保存しません。 ・体調に不安のある方は、医師に相談のうえご利用ください。 【料金】 ・年間プラン ¥4,800 / 年 ・週間プラン ¥1,200 / 週 自動更新サブスクリプションです。解約しない限り、期間終了の 24時間前に自動更新されます。管理・解約はApp Storeの アカウント設定から行えます。 【プライバシーポリシー】 https://sixcore-ai-proxy.mayth-issei.workers.dev/privacy 【利用規約】 https://sixcore-ai-proxy.mayth-issei.workers.dev/terms

Screenshots

Muscle Counter3 screens
SIXCORE4 screens

Verdict

The call

The clearest difference is in-app purchases: Muscle Counter at none against SIXCORE's 3. SIXCORE's advantage is ads (none vs shown) and update cadence (every 3 days vs every 6 weeks). On price, 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. SIXCORE sells 3 in-app purchases, starting at $6.99 per 7 days. Muscle Counter asks for nothing beyond the download.

UpkeepUpdate frequency

Muscle Counter ships an update every 6 weeks, SIXCORE every 3 days. The most recent releases landed on November 7, 2026 and November 11, 2026 respectively.

Scorecard3 real differences · 5 level
Muscle Counter versus SIXCORE: the parameters behind the verdict, then further details
ParameterMuscle CounterSIXCORE
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 6 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Subscription
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size39 MB44 MB
Age rating17+4+
Developeryukio nagatomoIssei Nishi

In-app purchases

None

Muscle Counter

No in-app purchases

3 purchases

SIXCORE

Subscriptions3
  • シックスコア(週額)$6.997 Days
  • シックスコア(年額割引)$19.991 Year
  • シックスコア(年額)$29.991 Year

Questions

Is Muscle Counter free?
Muscle Counter is free to download, with no in-app purchases.
Is SIXCORE free?
SIXCORE is free to download, with in-app purchases available.
Do Muscle Counter or SIXCORE have ads?
Muscle Counter shows ads; SIXCORE does not.
Which is updated more often, Muscle Counter or SIXCORE?
Muscle Counter ships an update every 6 weeks, and SIXCORE every 3 days. Most recently, Muscle Counter was updated on November 7, 2026 and SIXCORE on November 11, 2026.

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