Aida vs Index
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Aida
This AI-powered app automatically organizes your typed or pasted notes into smart categories. It offers fast search and a built-in assistant for quick answers and suggestions, helping you manage thoughts, tasks, and ideas without manual sorting.
- Self-sorting notes
- Blazing-fast search
- Natural language input
- Smart categories
- Built-in AI assistant
- Cross-project organization
Read full descriptionHide full description
Your head was never meant to be a filing cabinet. Say one messy thought. Aida turns it into notes, reminders, tasks, ideas and memories, then brings back what matters when you need it. No folders. No tags. No setup. Just type or speak naturally. Say it once “Dentist Tuesday at 4, pick up bread, gift idea for Mum, and I’m stressed about work.” Aida separates it into an appointment, a shopping task, a gift idea and a journal entry. Each one is automatically organized in the right place. Your day, already arranged - See routines, reminders and tasks when they matter. - Aida can give you a calm daily brief with what is scheduled, what needs attention and anything worth remembering. No noisy dashboard and no pressure to complete everything. Ask your memory anything - “What shoe size does Emil need?” - “What was Mum’s birthday gift idea?” - “When is my next doctor appointment?” Aida answers using what you previously saved and shows the original note it came from. Think freely - Brainstorm ideas with Aida, ask follow-up questions and save only the useful parts. - Plans, gift ideas, study notes and decisions can become organized memories without copying and pasting them into another app. Everything, already sorted - Aida automatically organizes your notes into categories such as Health, Family, Shopping, Work, Home and Journal. - Recurring reminders return when they should. Important information can resurface when it becomes relevant again. Made for people carrying too much in their heads - Aida is for parents managing family details, people collecting hundreds of notes-to-self, small business owners juggling unfinished thoughts, and anyone who has written something down only to never find it again. Most apps give you somewhere to put things. Aida takes them off your mind. Available on iPhone and iPad. Voice and text capture. Available in 13 languages. Aida holds the details, so your head can stay light.
Index
Organize and recall information from various sources like links, notes, and documents. Discuss complex ideas with your saved content and get answers grounded in your personal knowledge base. Capture information quickly using the share sheet and maintain control over your data.
- Save links, notes, and documents
- Organize personal knowledge
- Discuss complex ideas with saved content
- Extract readable page content
- Syncs across devices
- Delete data anytime
Read full descriptionHide full description
Save anything. Think with everything. Index is a personal knowledge workspace for the context you do not want to lose. Share a link, note, or document from your iPhone, and it becomes part of a calm, organized brain you can return to later. ASK YOUR BRAIN Discuss complex ideas across everything you have saved. Index grounds answers in your own context and links citations back to each source. CAPTURE WITHOUT BREAKING FOCUS Use the iOS share sheet to save useful links, selected text, files, and quick notes in seconds. TURN LINKS INTO CONTEXT Index extracts readable page content, creates a concise summary, and keeps your own note beside it. STAY IN CONTROL Your account syncs across devices. Delete individual items and conversations whenever you want, or permanently delete your account and its captures, files, chats, and feedback from inside the app. Built for founders, researchers, and knowledge workers who want less friction between finding something useful and thinking with it. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://index-legal.vercel.app/privacy
Screenshots
Verdict
Aida and Index are too close to call on the numbers: across 6 compared parameters — price, ads, in-app purchases and monetization model 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
Both are free to download. Aida sells 3 in-app purchases, starting at $4.99 per month and Index sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Aida | Index |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 63 MB | 19 MB |
| Age rating | 4+ | 4+ |
| Developer | Kurbonoy Gadoeva | Sunset Capital, llc |
In-app purchases
Aida
- Monthly$4.991 Month
- 3 Months7 Days trial$9.993 Months
- Annual1 Year trial$49.991 Year
Index
- Index Pro Monthly$9.991 Month
- Index Pro Annual7 Days trial$79.991 Year









