Comparison

商业易筋经 vs Contract Lab

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

Head to head
About

商业易筋经

Features
Read full description

为创业者提供学习交流的平台,帮创业者打通商业任督二脉 用户可以发布动态、学习易筋经创业视频课程、查看商业资源、查看项目分析报告等

About

Contract Lab

Features
Read full description

ContractLab is an analytical calculator for the trade-up contract mechanic inside Counter-Strike 2. It helps players plan material combinations before they execute contracts inside Valve's official game client. This is a calculator and reference tool. ContractLab does NOT: • Execute any in-game actions or interact with Valve game servers • Facilitate buying, selling, or trading of virtual items between users • Provide financial, investment, or trading advice • Operate any form of gambling, loot box, or lottery mechanic — FEATURES — • Knapsack-based contract solver: compute optimal material combinations under wear-value and quantity constraints • Wear-value precision calculator down to 7 decimal places • Multi-platform market price reference (Buff, Steam Market, C5, YouPin, CSFloat, EcoSteam) — data is fetched from each platform's public API on user request, ContractLab does not store or proxy purchase data • Skin database with collection / rarity / wear-tier metadata • Local-first compute: contract analysis runs entirely on-device — DISCLAIMER — ContractLab is an independent tool developed by fans, not affiliated with, endorsed by, or sponsored by Valve Corporation. Counter-Strike, CS:GO, CS2, and all related marks are trademarks of Valve Corporation. Market price data is informational only and may not reflect real-time prices. Virtual item prices fluctuate; nothing in this app constitutes investment, financial, or trading advice. Use at your own discretion. — PRIVACY — ContractLab does not track you across other apps or websites. We do not use the IDFA. Third-party market account credentials are stored only in your device's Keychain and never transmitted to our servers. See the in-app privacy notice for full details. Questions or feedback: support@cs-contract.com

Screenshots

商业易筋经4 screens
Contract Lab4 screens

Verdict

The call

The clearest difference is update cadence: Contract Lab at every 4 days against 商业易筋经's every 3 weeks. 商业易筋经's advantage is iOS requirement (10 vs 18.0). 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

商业易筋经 ships an update every 3 weeks, Contract Lab every 4 days. The most recent releases landed on October 27, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
商业易筋经 versus Contract Lab: the parameters behind the verdict, then further details
Parameter商业易筋经Contract Lab
PriceFreeFree
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPod — betteriPhone
Requires iOS10 — better18.0
Further details — not scored
Size38 MB80 MB
Age rating4+4+
DeveloperHangzhou Facing the Sea Technology Co., Ltd奇 林

In-app purchases

None

商业易筋经

No in-app purchases

None

Contract Lab

No in-app purchases

Questions

Is 商业易筋经 free?
商业易筋经 is free to download, with no in-app purchases.
Is Contract Lab free?
Contract Lab is free to download, with no in-app purchases.
Do 商业易筋经 or Contract Lab have ads?
Neither 商业易筋经 nor Contract Lab shows ads.
Which is updated more often, 商业易筋经 or Contract Lab?
商业易筋经 ships an update every 3 weeks, and Contract Lab every 4 days. Most recently, 商业易筋经 was updated on October 27, 2026 and Contract Lab on October 31, 2026.

Other comparisons