Stock Prediction AI vs Defray
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stock Prediction AI
This app uses AI to provide stock market predictions, including buy/sell sentiment and potential price spikes. It currently supports Japanese and US markets, with ongoing development to improve accuracy and add new prediction models.
- AI sentiment analysis (buy vs. sell)
- Spike signal predictions
- Market sentiment prediction
- Stock rise/fall prediction
- Market rebound point prediction
- Supports Japanese and US markets
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It provides a variety of AI predictions about stocks. These include "Sentiment (buy vs. sell sentiment)" in the stock market and "Spike Signals" that tell you in advance that a stock will rise in the near future. AI predictions for other patterns will be added in the future. These include AI that predicts market sentiment, AI that predicts a rise, AI that predicts a fall, and AI that predicts a market rebound point. Currently, it supports the Japanese market and the US market. The accuracy is not yet universal. That is why we are doing our best to update the accuracy and create new AIs every day, so please look forward to the future. 【Self responsibility】 Please invest at your own risk. There are some false positives in this app's predictions. There is no way in the world to make more money with zero risk. We are not responsible for any detriment to the user. We also do not accept claims. 【Not investment advisor】 This app is an AI-powered forecasting app that only provides information on the magnitude observed on a daily basis. As such, it is not worthy of the advice of an investment adviser and cannot be advised by law. 【Other】 ●Official site http://financial-ai.tech/stock_magnitude_en.html ●Twitter https://twitter.com/GachiNyanNyan ●Terms of Service http://financial-ai.tech/stock_magnitude_term_en.html
Defray
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Defray splits bills between friends, flatmates and travel groups, and it's free. No ads, no subscription, no "upgrade to add more than three expenses today". Nothing is locked behind a paywall. Only you need the app. Send your group a link and everyone else can open it in any browser to see what they owe and add what they paid. No download, no account, no password. ON A TRIP Five of you in Lisbon. Daniel pays 210€ for the farewell dinner, you buy the tram tickets, Lena pays for the gin at the duty-free in pounds. Everyone adds what they paid, from the app or from the link. Defray keeps a running balance for each person, converts the pounds at the live rate, and at the end works out the fewest transfers that square everyone up. No signal on the ferry? Add the expense anyway. It's saved on your phone and syncs as soon as you're back online. AT HOME Rent, electricity, internet, the cleaner every two weeks. Set each one up once as a recurring expense and Defray adds it on the right day, split the way you chose. WHAT YOU GET Splitting: equally, by exact amounts, by percentage or by shares. Add an extra on top for one person when someone ordered the lobster. Currencies: mix currencies in one group, use live exchange rates or type your own, and convert what someone owes in one tap. Settling up: who owes whom across all your groups, debt simplification, and payments you sent or received. Receipts: attach photos or videos to any expense. Categories: picked from the title as you type, or make your own. Guests: add people who don't use Defray and keep track of their share. They can claim an account later and keep their history. Chat: a group chat in every group, plus direct messages, with photos, voice messages, @mentions and reactions. Planning: shared notes and checklists, pinned places on a map, the weather where you're going, a shared calendar with reminders, and a photo wall. Stats: spending by category, by person and by month. Personal expenses: log your own spending with no group at all. Notifications when someone adds an expense or pays you back. If you've been tracking who owes what in a notes app, a spreadsheet or the group chat, Defray replaces all three. Good for holidays and weekends away, shared flats, couples, festivals, stag and hen dos, team lunches, and anything else where money goes into one pot and comes out unevenly.
Screenshots
Verdict
The clearest difference is in-app purchases: Defray at none against Stock Prediction AI's 1. On price, update cadence, ads 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
Both are free to download. Stock Prediction AI sells 1 in-app purchase, starting at $9.49 per month. Defray asks for nothing beyond the download.
Stock Prediction AI ships an update every 4 weeks, Defray every 2 weeks. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.
| Parameter | Stock Prediction AI | Defray |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 68.6% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 4 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 18 MB | 113 MB |
| Age rating | 4+ | 4+ |
| Developer | Daiki Takano | Theodoros Tsakalos |
In-app purchases
Stock Prediction AI
- One month usage fee1 Month trial$9.491 Month
Defray
No in-app purchases









