Comparison

Span vs SlashID Authenticator

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

Head to head
About

Span

Track upcoming events with live countdowns or elapsed time since past moments. Log daily habits, discover patterns, and explore historical events with rich media. Organize and share your time-related data seamlessly.

Highlights
  • Live second-by-second countdowns
  • Elapsed time tracking
  • Habit and routine logging
  • Historical 'On This Day' events
  • Customizable widgets
  • Shareable event cards
  • iCloud backup and sync
Features
Read full description

Your relationship with time, all in one place. Count down to birthdays, trips, and deadlines, or see how long it’s been since a milestone. Log recurring events with Trackers and explore history with On This Day. No accounts. No ads. No tracking. SPANS - Live Countdowns — See years, months, days, hours, minutes, and seconds until or since a date. Date-only spans count calendar days. - Apple Calendar — Choose events to import, review their details, and keep selected events updated or make one-time copies. Span never adds new Calendar events automatically or writes changes back to Calendar. - Smart Emoji Suggestions — Get up to three matching emoji as you type, using on-device Apple Intelligence when available. - Yearly Recurrence — Repeat birthdays and anniversaries, with smart holiday dates that adjust each year. - Holiday Templates — Start with 22 US holidays and cultural events, including Thanksgiving, Easter, Christmas, Hanukkah, and Chinese New Year. - Weather — Add a US ZIP code for historical weather or a forecast within the next 16 days. - Tags — Give spans and trackers custom tags with optional colors. Read tag names on cards and filter by one or several tags. - Organize — Filter by upcoming, elapsed, or archived; sort by date, name, or custom order. Choose Reorganize to drag rows into place. - Share — Send a styled countdown image or a link that opens in Span. TRACKERS - Log Anything — Tap once to record an event and see the time since your last entry. - Patterns — Frequency statistics show how often you typically do something. - Full History — Add dated entries, edit timestamps, or delete mistakes. - 14 Templates — Workout, Run, Coffee, Meditation, Shower, and more. ON THIS DAY Browse notable historical events for any date, powered by Wikipedia. Open an event to read its description and a related Wikipedia article. Images appear when available. Optional daily notifications bring you a historical event to explore. WIDGETS - Span Widget — Small, medium, or large, plus extra-large portrait on iOS 27. Auto mode follows your Spans tab’s filters, tags, and sort order, or you can choose spans manually. Tap a row to open that span. - Tracker Widget — Choose one tracker for a small Home Screen widget. See time since your last event and its date and time, tap Log now to record an entry, or tap elsewhere to open that tracker’s details. - On This Day Widget — Daily history on your Home Screen, with an extra-large portrait option on iOS 27. Tap to open the matching event. SIRI & SHORTCUTS Create spans, get countdowns, and log tracker entries with Siri and Shortcuts on iOS 26 and later. NOTIFICATIONS Get notified at a span’s event time or choose an advance reminder in minutes, hours, or days. Enable daily history alerts separately. BACKUP Manually back up and restore your spans and trackers with iCloud Drive. Your backup stays in your own iCloud account. FREE & PRO Track up to 2 spans and 1 tracker for free. Unlock unlimited spans and trackers with a one-time Span Pro purchase. PRIVACY No account, advertising, or analytics. Your spans and trackers stay on your device, with optional backup to your own iCloud Drive.

About

SlashID Authenticator

Read full description

SlashID Authenticator is a secure TOTP (Time-based One-Time Password) app that helps protect your accounts with two-factor authentication. KEY FEATURES: • TOTP Code Generation Generate secure 6-digit verification codes that refresh every 30 seconds. Compatible with any service that supports TOTP-based two-factor authentication. • Mutual Identity Verification Verify the identity of colleagues and contacts through our unique mutual TOTP handshake feature. Both parties exchange and verify codes to confirm each other's identity - perfect for phone calls or remote meetings. • Delegated Identity Verification Verify a colleague's identity on their behalf, following the organizational hierarchy or an allow list of approvers. • Enterprise Integration Activate with a token provided by your IT administrator. Seamlessly integrates with your organization's SlashID deployment. • Biometric Security Protected by Face ID or Touch ID. Your codes stay secure even if someone has access to your device. • Privacy First All sensitive data is stored securely in the iOS Keychain. Your TOTP secrets never leave your device. REQUIREMENTS: • Activation token from your organization's IT administrator • iOS 15.0 or later • Face ID or Touch ID capable device recommended SlashID Authenticator is designed for enterprise use. Contact your IT administrator to get started.

Screenshots

Span4 screens
SlashID Authenticator3 screens

Verdict

The call

The clearest difference is in-app purchases: SlashID Authenticator at none against Span's 1. SlashID Authenticator also leads on device support (3 vs 1) and iOS requirement (15.0 vs 26.0). On price, update cadence and ads 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. Span sells 1 one-off in-app purchase. SlashID Authenticator asks for nothing beyond the download.

UpkeepUpdate frequency

Span ships an update every 2 weeks, SlashID Authenticator every 3 weeks. Both last shipped on October 31, 2026.

Scorecard3 real differences · 7 level
Span versus SlashID Authenticator: the parameters behind the verdict, then further details
ParameterSpanSlashID Authenticator
PriceFreeFree
Rating5.0 (8 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size6 MB2 MB
Age rating4+4+
DeveloperShamir WehbeIRD Holdings Corp

In-app purchases

1 purchases

Span

One-time1
  • Span Pro$1.99
None

SlashID Authenticator

No in-app purchases

Questions

Is Span free?
Span is free to download, with in-app purchases available.
Is SlashID Authenticator free?
SlashID Authenticator is free to download, with no in-app purchases.
Do Span or SlashID Authenticator have ads?
Neither Span nor SlashID Authenticator shows ads.
Which is updated more often, Span or SlashID Authenticator?
Span ships an update every 2 weeks, and SlashID Authenticator every 3 weeks. Most recently, Span was updated on October 31, 2026 and SlashID Authenticator on October 31, 2026.

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