Cavio alternatives

About Cavio

Cavio is a free antique and vintage research guide for curious resellers. Start with a photo checklist, inspect maker marks and condition, compare relevant eBay sold items, and work through a hypothetical buy ceiling before committing to a find. The website also explains the planned AI-assisted iPhone and web project.

Free · Education

1. 1

   FluentSphere

   Practice the work conversations that shape your career

   FluentSphere helps non-native English speakers rehearse the work conversations that matter: job interviews, presentations, client calls and negotiations.

   Freemium2 upvotesEducation
2. 2

   stack127

   A toolbox and reference hub for indie hackers

   stack127 is a free toolbox and reference hub for indie hackers, solo developers, and digital creators. Calculate SaaS metrics and Amazon KDP royalties, check domains and DNS, and plan hosting and storage.

   Free2 upvotesEducation
3. 3

   Capiverso

   Chat with real people. Your messages turn into English.

   Capiverso is a social way to practice English through real conversations. Join chat rooms, meet other learners, and write naturally in your own language — Capiverso turns your messages into English automatically.

   Free1 upvoteEducation
4. 4

   Attendance Tracker: Class Log

   Track lessons, prepaid credits and makeup balances.

   A private lesson ledger for independent tutors, teachers and coaches. Organize clients and groups, schedule lessons, record attendance and cancellations, and track prepaid credits and makeup balances.

   Freemium2 upvotesEducation
5. 5

   JustCalculators.app

   Every Calculator You'll Ever Need

   JustCalculators.app provides more than 290+ free online calculators across six major categories: financial, health & fitness, math, utility, crypto/DeFi, and eCommerce.

   Free1 upvoteEducation
6. 6

   Maestro chess

   Live chess-training SaaS that drills players' own mistakes

   Maestro finds the chess mistakes you keep repeating and trains them out of your game. Enter your Chess.com or Lichess username and a free scan analyses your last 12 games with Stockfish 18, right in your browser, in…

   Free1 upvoteEducation
7. 7

   Aethel Audio

   Turns complex books into guided learning experience.

   Have you ever tried reading a dense philosophy book, a dry academic paper, or a massive non-fiction text and found yourself rereading the exact same paragraph five times just to make sense of it? Aethel Audio uses high…

   Free5 upvotesAI
8. 8

   DisplayMath

   Compare TV sizes from your seat and preview them in AR

   DisplayMath helps TV buyers and monitor users compare screens before buying. See physical sizes to scale, then change viewing distance to compare how large each screen looks from your seat.

   Free4 upvotesLifestyle
9. 9

   CitiGrow

   A new way to know Shanghai

   CitiGrow is a cultural exploration platform for independent travellers who want to understand Shanghai beyond the usual tourist guides.

   Free3 upvotesTravel
10. 10

    Battery Guardian

    Track drain, wear & health — beyond Android's basic monitor

    Battery Guardian provides advanced Android battery health insights and real-time tracking. Unlike standard metrics, the app shows true aging cycles, analyzes usage vs.

    Free1 upvoteEducation

The rest are ordered by how closely they match Cavio (shared categories and tags), then by upvotes.