Predixa vs ChartLogs
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Predixa
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Predixa is an AI-powered market analysis app providing predictive insights on SPY and S&P 500 trends. START WITH A FREE 14-DAY TRIAL Try all Pro features free for 14 days. No credit card required to start your trial. PRO FEATURES (Subscription Required): • Weekly forecasts - Requires Pro subscription • Daily tier rankings - Requires Pro subscription • Future options analysis - Requires Pro subscription • Economic calendar - Requires Pro subscription • Real-time market updates - Requires Pro subscription After your free trial, your subscription will automatically renew unless cancelled at least 24 hours before the end of the trial period. You can cancel anytime in your App Store account settings. https://www.predixaweb.com/terms
ChartLogs
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How much would your money have grown if you had invested in the past? ChartLogs is a simulation app that lets you explore the last 10 years of price performance for stocks, ETFs, crypto, FX, and commodities. For example: “If I had invested ¥1,000,000 in Bitcoin and the S&P 500 five years ago, which one would have grown more? What if dividends were included?” ChartLogs helps you compare results intuitively with graphs. Key Features Browse up to 10 years of historical prices Compare two assets side-by-side on the same chart Automatically calculates returns in Japanese yen (JPY) with FX conversion Computes total return including dividends/distributions Completely free with ads Whether you’re a beginner or an experienced investor, you can sharpen your investing intuition by reviewing past markets. Use real market data across stocks, ETFs, and crypto to discover your next investment idea.
Screenshots
Verdict
The clearest difference is in-app purchases: ChartLogs at none against Predixa's 2. Predixa's advantage is ads (none vs shown) and update cadence (daily vs every 9 days). 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
Both are free to download. Predixa sells 2 in-app purchases, starting at $19.99 per month. ChartLogs asks for nothing beyond the download.
Predixa ships an update daily, ChartLogs every 9 days. The most recent releases landed on September 25, 2026 and October 12, 2026 respectively.
| Parameter | Predixa | ChartLogs |
|---|---|---|
| Price | Free | Free |
| Update frequency | Daily — better | Every 9 days |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.5 | 18.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Lingxiao Ma | 株式会社Cavemen.jp |
In-app purchases
Predixa
- Monthly Pro$19.991 Month
- Yearly Pro$179.991 Year
ChartLogs
No in-app purchases









