Comparison

QS vs Dolla

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

QS

Features
Read full description

QS-DIW is a Digital Identity Wallet (DIW) app. The app is used by people to authenticate and sign payments and/or contracts as well as present verifiable information (attributes) about themselves. The person must perform Strong Customer Authentication (SCA) to complete all eID transactions. A DIW app can be used by a person to: - Log into a web site. - Gain access to e.g. a secure area, hotel room, sports or entertainment venue. - Open a bank account remotely, involving Know Your Customer (KYC). QS-DIW also meets the PSD2 requirement to perform SCA on payments. When eID credentials are issued to the person by a bank, the app can also be used to:- - Make payments at a POI (e.g. browser) / POS (in a shop). - Sign a contract and/or a direct debit mandate simultaneously. - Review and approve personal and corporate payment requests. - Perform multi-user approvals on payments.  Users can review summary information and optionally drill into the detail of an eID or payment order. They can approve or cancel orders and also monitor ongoing status. Status is categorised with red/amber/green colour coding. All rejects are clearly flagged, with reason information. The user SCA credentials are represented by an asymmetric (public/private) key pair, backed by X.509 (identity and attribute) certificates. The private key element resides within and never leaves the Secure Element of the smartphone. The private key is unlocked via the use of either the device’s biometric sensor and/or a PIN. The user’s biometric data also never leaves the smartphone. The SCA proof is represented by an Advanced Electronic Signature (AdES). The SCA proof is dynamically linked to the eID/payment/consent data, plus audit trail and device attestation information. The following payment formats are fully supported:- - PAIN.001 v3 - Credit Transfer - PAIN.001 v9 - Credit Transfer - PAIN.008 v2 - Direct Debit - PAIN.002 v3 - Payment Status - PAIN.002 v10 - Payment Status - ACMT.007 v1 - Account Opening - PAIN.009 v1 - E-Mandate - PAIN.009 v6 - E-Mandate - PAIN.010 v1 - E-Mandate Amendment - PAIN.010 v6 - E-Mandate Amendment - Berlin Group NextGenPSD2 JSON formats PSD2 = DIRECTIVE (EU) 2015/2366 on payment services in the internal market GDPR = REGULATION (EU) 2016/679 on the protection of natural persons

About

Dolla

Instantly create and manage virtual cards for secure online payments, subscriptions, and expense tracking. Protect your real bank account information and gain control over your finances with detailed transaction insights and global acceptance.

Highlights
  • Instant virtual card issuing
  • Enhanced financial security
  • Detailed transaction tracking
  • Global payment acceptance
  • Subscription and recurring payment management
Read full description

Dolla is your ultimate solution for fast, secure, and hassle-free virtual card issuing. Whether you're managing your personal budget, paying online, or tracking business expenses, Dolla puts you in control of your finances. Key Features: Instant Card Issuing: Create virtual cards instantly for one-time purchases, subscriptions, or recurring payments. Enhanced Security: Protect your finances with virtual cards that keep your real bank account information safe. Detailed Transaction Insights: Track your spending with real-time updates and detailed transaction histories. Global Acceptance: Use Dolla’s virtual cards wherever major payment networks are accepted, both online and offline. With Dolla, you gain peace of mind knowing your payments are secure, your budget is under control, and your money is working smarter. Say goodbye to the limitations of traditional cards and hello to the future of virtual payments. Who’s it for? Whether you're a frequent online shopper, a small business owner, or someone who values privacy and control over their finances, Dolla is designed with you in mind. Start issuing your virtual cards today and take charge of your financial life. Download Dolla today and experience the power of virtual cards at your fingertips!

Screenshots

QS2 screens
Dolla4 screens

Verdict

The call

The clearest difference is update cadence: Dolla at every 11 days against QS's every 2 months. Dolla also leads on iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

QS ships an update every 2 months, Dolla every 11 days. The most recent releases landed on October 17, 2026 and October 22, 2026 respectively.

Scorecard2 real differences · 8 level
QS versus Dolla: the parameters behind the verdict, then further details
ParameterQSDolla
PriceFreeFree
Rating—2.2 (84 ratings) — better
Positive reviews—24.0% of reviews
Number of ratings—84 — better
Update frequencyEvery 2 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.612.0 — better
Further details — not scored
Size18 MB35 MB
Age rating4+4+
DeveloperQuali-Sign LTDFlexgreen Concept Ltd

Bugs and requests

QS

Not enough reviews yet to summarise bugs or requests.

Dolla

Reported bugs

2 issues
  • Funded card not showing the correct balance
  • Inability to use the card for purchases

Requested features

2 requests
  • More funding options like CashApp
  • Withdrawal functionality

In-app purchases

None

QS

No in-app purchases

None

Dolla

No in-app purchases

Questions

Is QS free?
QS is free to download, with no in-app purchases.
Is Dolla free?
Dolla is free to download, with no in-app purchases.
Do QS or Dolla have ads?
Neither QS nor Dolla shows ads.
Which is updated more often, QS or Dolla?
QS ships an update every 2 months, and Dolla every 11 days. Most recently, QS was updated on October 17, 2026 and Dolla on October 22, 2026.

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