Comparison

ChaJi vs Cha Qi · 茶气

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

Head to head
About

ChaJi

Features
Read full description

Cha Ji is a focused tea journal for gong fu cha enthusiasts. Keep a record of every tea you own, every brew you make, and the notes that help you improve, all stored privately on your device and synced via iCloud. JOURNAL Add teas with name, type, origin, vendor, harvest season, star rating, and a purchase link. Log brew sessions for each tea: temperature, leaf weight, water volume, vessel, steep times, and free-form notes. Mark whether you want to buy a tea again. Search and filter your whole collection by type, rating, or buy-again status. BREW SESSIONS Each tea keeps a numbered session log. Record the date, vessel (gaiwan, teapot, or custom), temperature, grams, milliliters, individual steep durations, tasting notes, and a "next time" note to guide your next brew. Session parameters carry over automatically so you spend less time filling in forms. BREWING REFERENCE The Brewing tab shows gongfu starting-point ratios for every major tea style: green, white (tender and aged), yellow, oolong, black, raw pu'er, and ripe pu'er - with temperature guidelines. Dial in your vessel size with the slider and the leaf amounts scale to match. CLEAN AND FOCUSED No accounts. No subscriptions. No social features. Just a well-organized place to keep your tea notes.

About

Cha Qi · 茶气

This app helps gongfu cha drinkers calculate tea session scores, estimate caffeine and L-theanine, and forecast sleep impact. It offers personalized brew recommendations based on desired mental states and includes a session timer and diary for logging experiences.

Highlights
  • Gongfu cha session calculator
  • Caffeine and L-theanine estimation
  • Sleep impact forecast
  • TCM nature and Qi profile analysis
  • Goal-driven brew recommendations
  • Gongfu infusion timer
  • Session diary and notes
Features
Read full description

Cha Qi · 茶气 is a calculator and notebook for the gongfu cha drinker. WHAT IT DOES • Cha qi score on Lu Tong's Seven Bowls scale • Caffeine and L-theanine estimate • Sleep forecast — when you can fall asleep by 11pm • TCM nature 性 of the brew: cool, neutral, warm, hot • Qi profile: calm vs focus vs euphoria balance • Goal-driven recommendation: what to brew for the state you want SIX TABS • Session: pick your tea, vessel, and grams — see the calculation • Goal: set a state ("Bright focus", "Soft relaxation", "Deep dive", "Cha zui euphoria") and get a brew plan • Timer: gongfu infusion timer • Diary: log sessions, taste notes, mood • A/B: compare two brews side by side • Teas: library of 40 known varieties + your personal stash PRIVACY All your data — library, diary, notes — stays on your device. Nothing is uploaded. LANGUAGES Russian, English, Chinese (Simplified) with locale-aware tea names. OFFLINE Works without internet.

Screenshots

ChaJi4 screens
Cha Qi · 茶气4 screens

Verdict

The call

ChaJi and Cha Qi · 茶气 are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
ChaJi versus Cha Qi · 茶气: the parameters behind the verdict, then further details
ParameterChaJiCha Qi · 茶气
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.1 — better
Further details — not scored
Size1 MB4 MB
Age rating4+4+
DeveloperRoy ZwambagUMAR SEMENOV

In-app purchases

None

ChaJi

No in-app purchases

None

Cha Qi · 茶气

No in-app purchases

Questions

Is ChaJi free?
ChaJi is free to download, with no in-app purchases.
Is Cha Qi · 茶气 free?
Cha Qi · 茶气 is free to download, with no in-app purchases.
Do ChaJi or Cha Qi · 茶气 have ads?
Neither ChaJi nor Cha Qi · 茶气 shows ads.

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