[Tool] Local-first portfolio tracker — public-address wallet scan, no seed, no KYC to scan

[foliospan]

I built this for a boring reason: I wanted stocks and a few on-chain wallets in one book without dumping a seed into a “portfolio” app or doing exchange KYC just to see a balance I already own.

FolioSpan is a local-first personal portfolio tracker (stocks, crypto, ETFs, metals, public wallets). You paste a public address. It never asks for a seed or private key. KYC is not required to scan a wallet. It does not trade, swap, stake, send, or custody. Not financial advice.

Default storage is on-device SQLite. Cloud sync is optional and only after you sign in — so this is not “anonymous forever.” Chain data is public; scanning an address does not hide it.

Free: manual lots, 1 wallet scan, ads on free surfaces.
Pro (Play / App Store, their price): unlimited scans, auto-sync, ad-free, CSV.

Android: https://play.google.com/store/apps/details?id=com.foliospan.app
iOS: https://apps.apple.com/app/id6817707925
Site / privacy: https://getfoliospan.com/

Coverage is incomplete by design of the APIs I use. If a chain/token is wrong or missing, say so — that’s the useful feedback.

Do not use this as a mixer, a tax filer, or a broker. It is a record.

[hugeblack]

I’m not sure who will handle KYC for just wallet scanning, but since the project is not open-source, this isn’t the right forum for such a discussion, please move this topic to ---> https://bitcointalk.org/index.php?board=84.0

A price of $7 per month is quite expensive. Do you run your own full nodes to track balance updates, or do you rely on block explorers APIs? Also, why can’t the service be used directly via a website instead of requiring an app download?

[joniboini]

I also think offering a website option would be better if you can't expose your code for some reason. Especially when you offer a guest option. Considering how many malware and hacks are popping out nowadays, some people will probably get discouraged trying to use this portfolio tracker tool (other than the fees). I can't imagine paying a monthly payment that high for a portfolio tracker for example.

[foliospan]

@hugeblack @joniboini — thanks for the direct feedback.

Board: Happy to follow mods if this fits better elsewhere. I put it under Project Development because it’s a shipped tool, not an ICO/token pitch. If a mod wants it moved, I’ll cooperate.

KYC: Agreed — nobody should ask KYC just to look at a public address. The point of the line is the contrast with trackers that want exchange login / seed paste. FolioSpan only needs a public address for wallet scan. No seed, no private key, ever.

Closed source: Fair call. It’s proprietary for now. I’m not asking anyone to trust “open source vibes” they can’t verify — that’s why the threat model is narrow: paste a public address only, never a seed. If that still isn’t enough, don’t install it. I’m not pretending otherwise.

Nodes / data: I do not run my own full nodes for this. Balance/token data comes from third-party chain APIs / indexers (same class of providers most mobile trackers use). Coverage gaps and wrong tokens are therefore API limits — report them and I’ll fix what I can.

Website vs app: getfoliospan.com is the site (privacy / product). The tracker itself is local-first on-device SQLite, so the product is the app (Play + App Store). A guest website that holds your portfolio in someone else’s browser storage would undercut that design. A read-only web demo is possible later; it’s not the same product.

Price: Pro is billed by Google Play / App Store (their listing, regional price). Free tier exists: manual lots, 1 wallet scan, ads on free surfaces. If monthly Pro isn’t worth it for you, stay on free or skip — no hard feelings. I won’t argue anyone into a subscription.

Malware worry (@joniboini): Completely reasonable given the ecosystem. Distribution is official store listings only:
Android: https://play.google.com/store/apps/details?id=com.foliospan.app
iOS: https://apps.apple.com/app/id6817707925
Site: https://getfoliospan.com/

Again: not a mixer, not a tax tool, not a broker, not financial advice. Useful feedback = wrong/missing chain or token.

[AakZaki]

I'm not sure anyone will test this application, because I see no urgent interest in using this application. Moreover, there is only 1 scan which is a free version, in the end if we download this application will only make the device full or may become an overlooked application on the mobile.

Instead of directly telling potential users to download this application for testing, it is better to provide testing via the website first. So that we all know the extent to which this application will work.

[foliospan]

@AakZaki — Thanks for the feedback! I think there might be a slight misunderstanding about how FolioSpan handles wallet scans and manual tracking, so let me clarify:

1. Unlimited Manual Assets & Flexibility:
The free version is by no means limited to a single wallet view. You can manually add unlimited assets, transactions, stocks, and crypto portfolios completely for free. For most users, manual tracking covers their core everyday needs.

2. On-Chain Scans & In-App Rewards:
While the default free tier includes 1 automated public-address blockchain scan, you can unlock additional free scans simply through our in-app reward system (no subscription forced). Realistically, an average user rarely tracks dozens of primary active addresses at once, but if you do, the reward system or custom entry allows you to scale up effortlessly.

3. Why Local-First (App) vs. Web Demo:
FolioSpan is built with a local-first architecture using on-device SQLite storage. Your data stays encrypted on your local hardware—never on a central server. Building a full web demo would require either hosting user data remotely (which violates our core zero-knowledge privacy ethos) or running complex WASM/local browser storage that doesn't reflect native mobile performance.

We prioritize maximum privacy and device-level security over casual web scraping. I invite you to test the app safely using just a public watch-only address—no seed, no keys, and no personal data required.

[dkbit98]

Are there any plans to male web version, or alternative install option for desktop computers?
I prefer bookmarking webpage instead of installing new apps, and I don't have a bunch of altcoins to track my portoflio.

[foliospan]

@dkbit98 Thanks for the great question!

Currently, we don't have plans for a traditional cloud-hosted web version. Because FolioSpan is built on a strict local-first and zero-knowledge architecture (using on-device SQLite storage), your portfolio data lives entirely on your hardware—never on a central server. Running a web version would either compromise our core privacy ethos (by storing or handling user data remotely) or require complex WASM/local browser storage that doesn't match the native mobile performance and security we aim for.

However, for desktop users who prefer lightweight access, we are exploring potential native desktop wrappers (or optimized tablet/desktop builds) down the road that still strictly respect the local-first, zero-cloud rule.

Appreciate your feedback and for checking out FolioSpan! 🚀

[joniboini]

Because FolioSpan is built on a strict local-first and zero-knowledge architecture (using on-device SQLite storage), your portfolio data lives entirely on your hardware—never on a central server. Running a web version would either compromise our core privacy ethos (by storing or handling user data remotely) or require complex WASM/local browser storage that doesn't match the native mobile performance and security we aim for.

I used a website to generate some TTS through AI (running Supertonic TTS for example). I definitely feels the difference of generation speed between my PC and my phone, but I'm not sure if a lightweight database management will feel the same. AFAIK they utilize indexedDB to manipulate the data, is it comparable to your project? For example, I don't mind running an "inferior" app if I can export/import my locally generated data anytime.

[jaisaldev]

The no seed, no custody, local SQLite design is the right shape for this. Two questions.

First, on the wallet scan: when someone holds the same coin across several addresses, or moves funds between their own wallets, how do you keep that from showing up as a disposal or a false gain in the record? Lot matching on self-transfers is where most trackers quietly produce wrong numbers.

Second, you say coverage is incomplete by design of the APIs you use. Which chain is the worst offender right now? The honest answer to that tells a user more than the supported list does.

And a small plus one: putting CSV export behind Pro is a fair paywall choice, since the free tier still lets someone verify the record is accurate before paying anything.

(This reply was written by an AI assistant on my behalf and is labeled as required by the forum AI guidelines.)