Comparison

PitchSim vs BaseLedger

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

Head to head
About

PitchSim

Features
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PitchSim visualizes baseball pitch trajectories through physics simulation. Without throwing a single ball, just adjust velocity, spin rate, spin axis, and gyro spin to see how 15 pitch types move in real time — from a 4-seam fastball to a knuckleball. [Who It's For] · Fans who want to understand why Darvish's slider breaks the way it does · Pitchers and coaches who want to learn spin axis and gyro effects without a Rapsodo · Physics enthusiasts who want to experience the Magnus effect and Seam-Shifted Wake firsthand [Features] ■ 15 Pitch Presets 4-Seam Fastball, 2-Seam Fastball, Sinker, Changeup, Curveball, Slider, Gyro Slider, Cutter, Sweeper, Shoot, Splitter, Forkball, Knuckleball, SSW Demo ↘, SSW Demo ↖ ■ 3D View (4 Angles) Catcher, Right-Hand Batter, Left-Hand Batter, and Orbit views. Freely rotate in Orbit mode to see the full 3D trajectory. ■ Parameter Control Adjust velocity, spin rate, spin axis, and gyro spin with sliders. Changes reflect instantly in the 3D view. ■ Freeze at Zone Pause the ball exactly as it reaches the front of the strike zone. Compare ABS (Automated Ball-Strike) and rulebook judgements side by side. ■ Pitch Comparison (up to 8) Overlay multiple pitches to compare trajectories visually. Great for understanding pitch sequencing and tunneling. ■ Stats Panel Displays horizontal break, vertical break (IVB), exit velocity, and hop component — all in Statcast-compatible units (cm / inches). ■ 2D Views Switch between pitcher's-eye and top-down views for horizontal break analysis. [Physics Model] Based on Alan Nathan's baseball physics model (University of Illinois). Implements Magnus force, aerodynamic drag, gyro spin effects, and seam drag. v2.0 adds SSW (Seam-Shifted Wake) — a physics-based model of the asymmetric wake caused by seam orientation, improving accuracy for sliders, cutters, sinkers, and other seam-sensitive pitches. Calibrated against Statcast data. [Free vs. Full Access] Free: 6 pitches (Fastball, Curveball, Slider, SSW Demo ↘, SSW Demo ↖, Knuckleball), Catcher view only PitchSim First (one-time purchase): All 15 pitches, 4 views, Freeze, Pitch Comparison, Stats, and SSW auto-optimization Design pitches. Understand the physics. No ball required.

About

BaseLedger

Features
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BaseLedgerは、野球選手・指導者のための試合記録・AI分析アプリです。 ■ リアルタイム試合記録 投球の球種・コース・球速から打球の落下地点・飛距離まで、1球ごとに精密に記録。ランナーの進塁もダイヤモンド上で直感的に管理できます。 ■ AIによる深い分析 蓄積されたデータをAIが分析し、打者・投手・バッテリーそれぞれに特化したレポートを生成。弱点・傾向・改善点を数値とともに可視化します。 ■ チームチャット・試合共有 チームごとのグループチャットで試合データを共有。メンバーそれぞれが記録をインポートして自分の成績として蓄積できます。 ■ DM機能 選手・指導者間の1対1のダイレクトメッセージに対応。チーム内外のコミュニケーションをアプリ内で完結できます。 ■ 偵察データ機能 対戦相手の試合データを偵察データとして保存・分析。次戦に向けた配球組み立てや打席戦略の準備に活用できます。 ■ スポット打席記録 1打席単位で記録できる個人練習・実戦向けモード。 あの投手との特定の打席を、球種・コース・結果・メモとともに正確に残せます。 ■ BaseLedger ランキング チーム内の打率・OPS・飛距離・投球成績などをランキング形式で表示。選手同士の切磋琢磨を促します。 ■ 試合中リアルタイム参照(PROプラン) 試合中に対戦相手の過去データをリアルタイムで参照。配球組み立てや打席戦略に活用できます。 ■ 料金 基本無料で始められます。より多くの試合記録・AI分析が必要な方向けに有料プランをご用意しています。

Screenshots

PitchSim4 screens
BaseLedger4 screens

Verdict

The call

The clearest difference is iOS requirement: BaseLedger at 15.1 against PitchSim's 26.0. On price, update cadence, ads and in-app purchases 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. PitchSim sells 1 one-off in-app purchase and BaseLedger sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PitchSim ships an update every 2 weeks, BaseLedger every 8 days. The most recent releases landed on October 16, 2026 and October 11, 2026 respectively.

Scorecard1 real difference · 5 level
PitchSim versus BaseLedger: the parameters behind the verdict, then further details
ParameterPitchSimBaseLedger
PriceFreeFree
Update frequencyEvery 2 weeksEvery 8 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size5 MB57 MB
Age rating4+9+
DeveloperHIROSHI YASUNAGAmoegi Ochi

In-app purchases

1 purchases

PitchSim

One-time1
  • PitchSim First (Full Access)$9.99
2 purchases

BaseLedger

Subscriptions2
  • STANDARDプラン$2.991 Month
  • PRO$5.991 Month

Questions

Is PitchSim free?
PitchSim is free to download, with in-app purchases available.
Is BaseLedger free?
BaseLedger is free to download, with in-app purchases available.
Do PitchSim or BaseLedger have ads?
Neither PitchSim nor BaseLedger shows ads.
Which is updated more often, PitchSim or BaseLedger?
PitchSim ships an update every 2 weeks, and BaseLedger every 8 days. Most recently, PitchSim was updated on October 16, 2026 and BaseLedger on October 11, 2026.

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