Viettel Tammi

The Viettel Tammi app by Viettel Telecom holds the #1 spot in Vietnam's Top Free Business chart, matching its all-time peak achieved on August 3, 2026, with an average position of #5 over the last 30 days. It maintains a strong #7 ranking in Singapore and is present across several smaller markets: #12 in Saint Kitts and Nevis, #24 in the British Virgin Islands, #30 in Brunei, #33 in Nauru, and #39 in Vanuatu. While its Vietnam and Singapore positions are stable with no change, the app is showing notable declines in several island markets — Saint Kitts and Nevis dropped 10 spots, the British Virgin Islands fell 20, Nauru dropped 20, and Vanuatu slipped 12 positions. Overall, the app remains firmly anchored at the top of its home market with solid regional standing, though its footprint in smaller markets is softening.