Comparison

Cornerstone Bids vs Authenticator App+ ℠

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

Head to head
About

Cornerstone Bids

Streamline concrete and masonry estimating with phase-based takeoff calculators and automated pricing. Generate professional proposals quickly from your mobile device or web browser, empowering subcontractors to bid with confidence.

Highlights
  • Phase-based takeoff calculators
  • Centralized pricing
  • Quantity tracking
  • Professional proposal generation
  • Cross-device access
Features
Read full description

DESCRIPTION Cornerstone Bids is built for concrete and masonry subcontractors who are tired of estimating with spreadsheets and being tied to a computer. Create accurate takeoffs by phase—including footings, slabs, walls, columns, and more—with calculators designed around the work you perform in the field. Set your material, labor, and equipment pricing once in Project Settings, and automatically apply it throughout your estimate. When your estimate is complete, turn it into a clean, professional proposal in seconds. Cornerstone Bids gives working subcontractors the practical tools they need to estimate faster, stay organized, and bid with confidence. FEATURES • Phase-based takeoff calculators • Centralized material, labor, and equipment pricing • Concrete, rebar, block, and wire mesh quantity tracking • Professional proposal generation • Access estimates from your phone, tablet, or web browser

About

Authenticator App+ ℠

Features
Read full description

Authenticator App+ generates two-factor authentication codes for your online accounts and keeps your passwords in the same locked vault. Everything stays on your device. There is no account to create, no server, and nothing is collected. CODES THAT JUST WORK - Scan a QR code or type a secret key to add any account - Works with Google, Microsoft, Facebook, Instagram, Amazon, PayPal, Discord, GitHub, Dropbox, and every service that supports authenticator apps - Codes are generated on your device and need no internet connection - Tap once to copy a code MOVE IN FROM GOOGLE AUTHENTICATOR Scan the transfer QR code from Google Authenticator and your accounts come across in one step. BACKUP YOU CONTROL - Export an encrypted backup protected by a password you choose - Save it anywhere — Files, iCloud Drive, another device - Restore it on a new phone in seconds - Deleted the app by mistake? Reinstall it and your accounts are offered back PASSWORD VAULT Store passwords, usernames, and notes for your accounts alongside your codes, protected the same way. LOCKED DOWN - Face ID, Touch ID, or a PIN to open the app - Face ID required again to reveal a secret or a saved password - Repeated wrong PIN attempts are slowed down - The app covers its contents in the app switcher PRIVATE BY DESIGN - Secrets and passwords live in the iOS Keychain, marked never to sync - No analytics, no crash reporting, no third-party code - Nothing leaves your device unless you export it yourself ALSO INCLUDED A browser tab that keeps no history, cookies, or cache, for signing in without switching apps. --- Auto Renewable Subscription Terms: • Your free trial subscription will automatically renew to a paid subscription unless auto-renew is turned off at least 24 hours before the end of the free trial period. • You can cancel a free trial or subscription anytime by turning off auto-renewal through your iTunes account settings. This must be done 24 hours before the end of a free trial or subscription period to avoid being charged. The cancellation will take effect the day after the last day of the current subscription period, and you will be downgraded to the free service. • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Privacy Policy: https://bakirapps.com/privacy/authenticator Terms of Use: https://bakirapps.com/terms

Screenshots

Cornerstone Bids3 screens
Authenticator App+ ℠4 screens

Verdict

The call

The clearest difference is in-app purchases: Cornerstone Bids at none against Authenticator App+ ℠'s 2. Cornerstone Bids also leads on ads (none vs shown) and device support (3 vs 1). On price and update cadence 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. Authenticator App+ ℠ sells 2 in-app purchases, starting at $9.99 per 7 days. Cornerstone Bids asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 6, 2026 and September 28, 2026 respectively.

Scorecard4 real differences · 6 level
Cornerstone Bids versus Authenticator App+ ℠: the parameters behind the verdict, then further details
ParameterCornerstone BidsAuthenticator App+ ℠
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 3 daysEvery 3 days
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size0 MB14 MB
Age rating17+17+
DeveloperCornerstonebids LLCBakir Store

In-app purchases

None

Cornerstone Bids

No in-app purchases

2 purchases

Authenticator App+ ℠

Subscriptions2
  • Premium Weekly3 Days trial$9.997 Days
  • Premium Yearly$44.491 Year

Questions

Is Cornerstone Bids free?
Cornerstone Bids is free to download, with no in-app purchases.
Is Authenticator App+ ℠ free?
Authenticator App+ ℠ is free to download, with in-app purchases available.
Do Cornerstone Bids or Authenticator App+ ℠ have ads?
Authenticator App+ ℠ shows ads; Cornerstone Bids does not.
Which is updated more often, Cornerstone Bids or Authenticator App+ ℠?
Cornerstone Bids ships an update every 3 days, and Authenticator App+ ℠ every 3 days. Most recently, Cornerstone Bids was updated on October 6, 2026 and Authenticator App+ ℠ on September 28, 2026.

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