EL Tech vs Zulu Time
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EL Tech
Access real-time ASOS surface observations and NEXRAD radar data to monitor airport equipment health, detect anomalies, and troubleshoot issues. This tool helps maintenance personnel and field engineers ensure high system uptime for critical aviation weather systems.
- Live ASOS surface observations
- Real-time NEXRAD radar data
- Monitor equipment health
- Detect anomalies
- Troubleshoot system issues
- Maintain system uptime
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EL Tech helps airport maintenance personnel, technicians, and field engineers monitor ASOS, AWOS, and NEXRAD systems. Review surface observations, maintenance indicators, NEXRAD station telemetry, alarms, and available historical data. Keep site details, photos, issues, and imported maps together. The site map focuses on equipment and saved locations, with an optional Mammatus WX link for weather maps.
Zulu Time
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Zulu Time brings Zulu (UTC), local time, world-clock planning, UTC alarms, and original instrument-inspired displays together in one focused app. AT A GLANCE • View live Zulu and selected local time side by side. • Configure Zulu and local time independently: 24-hour, 12-hour, or military format, optional seconds, and separate date styles. • Detect your current time zone automatically and refresh it as needed, or manually choose from 111 countries/regions and 126 cities and aviation hubs. PLAN THE SAME MOMENT WORLDWIDE • Select an exact UTC date and time up to seven days ahead or behind. • Move by 15 minutes, one hour, or one day. • Compare the same moment across saved world clocks with UTC offsets, DST status, and day-boundary indicators. • Read ISO 8601, aviation DDHHMMZ, and YYDDD ordinal codes. ZULU ALARMS • Schedule alerts directly in UTC and review the local-time conversion before saving. • Create one-time, daily, or weekly alarms. • Choose sound on or off and snooze for 10 minutes. ORIGINAL THEMES • Choose from 17 brand-neutral designs: six modern aviation displays, seven premium analog dials, and four minimal themes. • Supported aviation themes can use the on-device compass for live heading; heading scales in other themes are decorative. • Premium dials display both Zulu and local time without covering the dial. IPHONE, IPAD & APPLE WATCH • Configurable Home Screen, Lock Screen, and StandBy widgets. • A full Apple Watch app with all 17 themes. • Zulu/local and Zulu/date complications. • Sync the selected place, time zone, theme family, and verified subscription status from iPhone. PRIVATE BY DESIGN • No ads. • No Zulu Time account. • No cross-app tracking. Zulu Time requires an auto-renewing monthly subscription. Eligible new subscribers can receive a 7-day free trial. The localized price and renewal terms are shown before confirmation, and the subscription can be managed or canceled in Apple Account settings. The aviation displays are visual clock themes only. They are not calibrated or certified flight instruments and must not be used for navigation. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: EL Tech at none against Zulu Time's 1. Zulu Time's advantage is update cadence (every 4 days vs fortnightly) and device support (3 vs 1). On price 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
Both are free to download. Zulu Time sells 1 in-app purchase, starting at $1.99 per month. EL Tech asks for nothing beyond the download.
EL Tech ships an update fortnightly, Zulu Time every 4 days. Both last shipped on October 31, 2026.
| Parameter | EL Tech | Zulu Time |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (7 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 116 MB | 15 MB |
| Age rating | 17+ | 4+ |
| Developer | Mammatus Weather LLC | Yigit Can Akinci |
In-app purchases
EL Tech
No in-app purchases
Zulu Time
- Zulu Time Pro7 Days trial$1.991 Month









