Easy Caller ID vs Slipster
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Easy Caller ID
Identify unknown callers and block spam calls with real-time information displayed on your native call screen. Instantly look up any phone number to find caller details and enrich your address book. Your privacy is protected, and all features are completely free.
- Instant caller identification
- Real-time call screen display
- Powerful spam call blocking
- System-level spam filtering
- Smart phone number lookup
- Contact enrichment
- Privacy-focused design
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Identify unknown callers, block spam calls, and search any phone number for free. Easy Caller ID helps you see who’s calling, stop robocalls, and look up unknown numbers instantly - all without subscriptions or hidden fees. Instant Caller ID Know who is calling before you answer. Easy Caller ID shows caller information directly on your iPhone’s native call screen so you can identify unknown callers in real time. Look up any phone number and discover details like: • Caller name • Job title • Company information • Spam status Powerful Spam Blocker Stop unwanted calls before they reach you. Our system-level spam blocker automatically blocks: • Robocalls • Telemarketers • Scammers • Fraud calls Your phone stays quiet while spam calls are filtered in the background. You can also block any number with one tap and build your own personal block list. Smart Phone Number Lookup Missed a call from an unknown number? Use the instant number lookup to identify who called you. Search both local and international phone numbers and see detailed caller information within seconds. Contact Enrichment Keep your address book accurate and complete. Easy Caller ID can automatically update your contacts with: • Names • Organization names • Job titles Your contacts stay clean, enriched, and up to date without manual editing. Privacy First Your privacy matters. Unlike many caller ID apps, Easy Caller ID does not make your phone number publicly searchable. Your personal information stays private and under your control. 100% Free Caller ID & Spam Blocking Most caller ID apps charge monthly subscriptions for basic features like spam blocking and unlimited phone number searches. With Easy Caller ID, everything is free: • Caller ID • Spam blocking • Phone number lookup • Contact enrichment No subscriptions. No premium tiers. No paywalls. Just a free caller ID and spam blocker that works.
Slipster
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Slipster turns your to-do list into 15-minute tiles you can actually schedule - capture a task, size it, and either drop it onto your calendar or leave it in the list for later. CAPTURE FAST, SCHEDULE WHEN YOU'RE READY Add a task in seconds. Every task is sized in 15-minute units (1x-8x, so up to 2 hours) - small enough to actually start, not another vague "someday" item. Leave it in the list, or schedule it straight onto your day. YOUR OWN CALENDAR, NOT A TAKEOVER Schedule a task and Slipster creates its own "Slipster" calendar right on your device - no Google sign-in required, just one permission tap. It sits alongside your existing calendars, never mixed into them. It's two-way: move or rename the event in Calendar and Slipster picks up the change automatically. The list is always the source of truth - putting a task on the calendar is a loan, not a move. FOUR WAYS TO SEE YOUR DAY List, Day, Agenda, and Week views, plus categories (Home, Work, Shopping, and your own) so you can filter down to just what's relevant right now. RECURRING TASKS THAT DON'T MAKE YOU RE-TYPE THEM Set a task up once as a template - fixed day or floating to the next open slot - and stop retyping "bins out" or "water the plants" every single week. THE GAP-FILLER Slipster checks your other calendars' free/busy time and surfaces tasks that actually fit the gap you have right now - instead of leaving you to eyeball your calendar and guess. SLIPSTER PRO Everything above is free, forever - it's never getting paywalled retroactively. Slipster Pro is an optional subscription that adds sync across all your devices, so your list and schedule stay in step everywhere you use Slipster. No ads, no streaks, no guilt-trip notifications - just an honest way to get from "I should do that sometime" to it actually being on your calendar. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Easy Caller ID at none against Slipster's 2. Slipster's advantage is update cadence (daily vs every 2 months) and iOS requirement (17.0 vs 26.0). On price, ads 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
Both are free to download. Slipster sells 2 in-app purchases, starting at $2.99 per month. Easy Caller ID asks for nothing beyond the download.
Easy Caller ID ships an update every 2 months, Slipster daily. The most recent releases landed on November 7, 2026 and November 6, 2026 respectively.
| Parameter | Easy Caller ID | Slipster |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (2.7K ratings) — better | — |
| Positive reviews | 69.4% of reviews | — |
| Number of ratings | 2.7K — better | — |
| Update frequency | Every 2 months | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 128 MB | 29 MB |
| Age rating | 12+ | 4+ |
| Developer | LSM Apps | DCB Productions |
Bugs and requests
Easy Caller ID
Reported bugs
4 issues- Contacts disappearing after updates
- Inability to restore paid subscription features
- Repeated prompts to update even on latest version
- Sync issues causing duplicate and missing contacts
Requested features
5 requests- Ability to sort contacts by first name
- Integration with more social networks for contact photos
- More customization options for contact groups
- Improved search and filtering capabilities
- Easier way to move contacts between accounts
Slipster
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Easy Caller ID
No in-app purchases
Slipster
- Slipster Pro Monthly$2.991 Month
- Cross Device Sync - Yearly$29.991 Year
Questions
Is Easy Caller ID free?
Is Slipster free?
Do Easy Caller ID or Slipster have ads?
Which is updated more often, Easy Caller ID or Slipster?
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